Kyofu Uchiha

Burezu-fu Uchiha is the main character of the unpublished Blazing Wind series. He is a Konoha Missing-Nin, and close cousin of Sasuke, Burezu-fu never leaves Sasuke's side, and wants to protect him no matter what

Background
Burezu-fu Kyofu Uchiha wasthe nephew of Konoha Military Police Force captain and Uchiha clan head: Fugaku Uchiha, and his wife Mikoto. After Burezu-fu's parents were killed on a mission so Mikoto took in Kyofu. While growing up he idolized his older cousin Itachi Uchiha. Itachi was an acknowledged prodigy viewed by the Uchiha clan as a geniues, and whose work would further streghthen the bonds between the village and clan. Kyofu's father in particular took an active interest in Itachi, thereby neglecting Kyofu and his younger cousin, Sasuke. Itachi on the other hand, was rather ambivalent and full of oddly conflicting currents, acknowledging Kyoufu by playing with him when their father/uncle did not. Soon Kyofu joined the Academy, but still got no attention from his uncle. Despite consistently scoring at the top of every class, Kyofu failed to receive any recognition from his father, who defined Kyofu's success only in terms of his older cousin. Nevertheless, Itachi deeply cared for his younger cousin and Kyofu looked up to Itachi, wanting to be like him.

At some point in the past, Kyofu joined Itachi on a mission to kill wild dog. Kyofu was wielding a kunai and was told by Itachi not to hit any vital points. However, Kyofu missed the boar completely. Eventually they defeated the wild dog and Kyofu apologised for being so off, Itachi responded by telling him that he needed to train more.The relationship between Itachi and his father deteriorated further after Itachi was questioned by other members of the Uchiha clan regarding the apparent suicide of his best friend, Shisui. As Itachi's behaviour became increasingly bizarre, Kyofu's uncle began spending more time with Sasuke and Kyofu, and began teaching them the Great Fireball Technique, a common family technique seen as a sign of coming of age in the Uchiha clan.When Kyofu first tried to perform the technique, he made a flame the size of his hand. While Sasuke only produced a small one and some smoke. His father said that Itachi was able to do it on his first try at Sasuke's age, which disappointed him. Later, with one week of training, Sasuke (age 7 at the time) and Kyofu (age 9) performed the technique in front of their father/uncle, proving themselves a prodigy as well in his own right and finally receiving his father's recognition. Kyofu and Sasuke's father told him that they could now proudly wear the clan's emblem on their back. Following this, the duo also received a stern warning not to follow in Itachi's footsteps any further, surprising them as before, they weretold to be like him; and their father/uncle showing he was proud of both Sasuke and Kyofu for the first time the same way as he used to with Itachi.

On one fateful night, Itachi killed every member of the Uchiha clan, sparing only his little brother Sasuke and little cousin Kyofu, saying that he was not even worth killing. In addition, Itachi told them, "You've always wanted to surpass me. That's why I'm going to let you live… if you wish to kill me, then hate me, despise me… and by all means flee, cling to your wretched life." Itachi also revealed to Sasuke and Kyofu where the secret meeting place of the Uchiha was hidden, and suggested that Sasuke and Kyofu go there to learn what the true history and purpose of the Sharingan was. He told him that "to awaken the Mangekyō Sharingan," he "had to kill the person he was closest to", and that "when we battle, we should have the same eyes". Sasuke and Kyofu thought they had fainted after this, but later remembered that he had managed to stand back up, awaken his Sharingan, and pursued Itachi. Upon reaching Itachi, he used knives to knock off his forehead protector. Itachi was seen shedding a tear as he was picking up the forehead protector. He then proceeded to incapacitate Sasuke, who awoke, next to an unconscious Kyofu, in the hospital remembering only that which Itachi wanted him to.

When Kyofu first met Rai Karaudo in the Academy, they were matched to spar against each other. Rai was excited at the opportunity to defeat Kyofu and become popular like him, but he was easily beaten. By looking at Kyofu's eyes, Rai realised that they were so filled with hatred that it seemed that he wasn't even looking at Rai. When Iruka told them to make the reconciliation seal, they both refused.Up until his graduation from the Academy, Kyofu remained a loner and never acknowledged Rai's attempts to defeat him, considering him a hopeless dead-last and as such, someone not worth his time or energy.

Personality
When he was a child, Kyofu was very kind, loving towards his parents and younger brothers and respectful to his fellow clansmen as well as his teachers. He was even very proud of being Itachi's cousin and Fugaku's nephew— famous for being devoted protectors of Konoha, and he desired to emulate them. His original dream was to join the Konoha Military Police Force when he grew up, like his uncle and as such greatly sought his uncle's approval and acknowledgement of his abilities.After Itachi massacred the clan, Kyofu's ideals and personality changed drastically due to him suffering his clan's curse and became cold, indifferent, cruel, cynical, somewhat arrogant, unreasonable and devoted the his life to follow and kill Itachi.

Appearance
Kyofu is a light brown-skinned ninja who has dark brown eyes and dark brown shoulder-length hair. His hair is spiky in the back with bangs that lengthen as the story progresses. As a young child, his bangs hung on the sides of his face. Later, they would hang over his left eye, and later again return to their original style. Kyofu is considered quite handsome as most girls near his age become very infatuated with him. At the beginning of Part I, Kyofu's clothing consisted of: a blood red, short-sleeved shirt with a split collar and the Uchiha crest on the back and black arm warmers, which he stopped wearing after the Chūnin Exams, along with white shorts. In the last stage of the Chūnin Exams, he wore a blood red, sports version of this outfit with many small arm-belts adorning his left arm and similar bands around both legs. As the story progressed, the Uchiha symbol became smaller and smaller.

Initially, Kyofu wore a short blood red-clothed forehead protector with the Konoha symbol on the metallic plate.

In Part II, Kyofu has grown noticeably taller over the two and a half years and more muscular. He was first shown wearing a blood red long-sleeved shirt, similar in appearance to the lavender long-sleeved shirt worn by Kimimaro and which was open at the torso, with a smaller version of the Uchiha crest on his collar. He wore silver pants with a blood red cloth hanging from halfway up his stomach to his knees. He also wore white arm-guards that covered his forearms and stretched up to reach his upper biceps. He also wore a black rope belt around his waist, tied in a bow, in which he carries his sword.

Abilities
While still a child, Kyofu is hailed as a brilliant ninja, even by the battle-adept Uchiha clan's standards, showing an undeniable prodigious talent and keen intellect to excel at all that he does. From this, he finds little difficulty in more challenging tasks as seen during his time in the Academy. Scoring the highest in the performance tests and one of the highest in written tests,he easily graduated at the top of his Academy class. Kyofu has great knowledge if not proficiency in many of his clan's techniques, despite his lack of formal training by relying solely on his innate talent and determination. His abilities have been compared to various remarkable individuals like Shi Haka, who was also hailed as a genius even as a child. Tobi, Itachi, and Orochimaru have all stated that Kyofu possesses the unique potential to become much stronger than his older cousin, who was already considered a genius above all others. Orochimaru even noted that Kyofu is far stronger than he was at the same age.Tobi has also stated that in time, Kyofu could become more powerful than Nagato.

By Part II, despite officially still being only a genin, he develops much of his potential, becoming strong enough to fight on par with several highly skilled and extremely powerful shinobi, such as Deidara, Itachi, Danzō, and Orochimaru, though he downplays his victory over Orochimaru and attributes it to the Sannin's weakened state. Kyofu was able to clash with Deidara — a powerful and dangerous S-rank Akatsuki member, decipher the mechanisms behind his abilities, and survive their battle without any handicaps. As Tobi noted, Itachi had already determined the outcome of their fight, as he was plagued with an unknown illness and was using medicine to prolong his life.This didn't prevent Itachi from praising Kyofu during their battle, displaying surprise on a few occasions over Kyofu's improved skills and tactics.

After awakening his Mangekyō Sharingan, Kyofu proved able to stand against Killer B, Gyūki's jinchūriki and an extremely powerful ninja, who praised Kyofu as one of the strongest ninja he has ever faced, despite Kyofu's inability to defeat him.After fully healing and further adjusting to his Mangekyō Sharingan, Kyofu proved able to hold his own against at least two Kage, their respective bodyguards and various samurai warriors. He also fought on even grounds with Danzō, another Kage-level opponent, while generally controlling the pace of the fight, and ultimately defeated him, even surviving against the elder's repeated use of Izanagi — a feat that later earned him praise from Itachi.

Taijutsu
Although not his most used combat tactic, Kyofu's taijutsu was at a very high level since the start of the series. During Team 5's first bell test with Haka, the elite ninja was shocked that he couldn't read Icha-Icha while fighting him as he needed both hands.He was also able to outmanoeuvre four jonin-level Sunagakure missing-nin. His skills improved drastically after his encounter with Rock Lee. With his Sharingan, he was able to copy some of Lee's moves and from it create the Ultimate Dragon Fist Barrage. Under Shi's tutelage, he improved his taijutsu further by copying more of Lee's Strong Fist-style, roughly matching Lee's basic combat skills and speed in one month.With this, he overwhelmed Gaara during their first fight. He was also able to hold his own against the entire Sound Four for a brief period of time. In Part II, Kyofu further improved his taijutsu under Orochimaru's guidance.

Since the start of the series, Kyofu showed a high level of speed and reflexes as he was the first of his fellow genin to react to the Demon Brothers' ambush and effectively counter them. After training in chakra control, his speed was on a near-equal level to that of Haku. He later increased his speed further to outrun Gaara's sand and move faster than unaided eyes could follow in Part I. After his Sharingan fully develops, he was also able to follow the speed of both Naruto's initial jinchūriki form and one-tailed form during their sparring match, though couldn't completely dodge the latter's demon shroud. In Part II, due to Orochimaru's training, Kyofu's already impressive speed saw a huge leap, able to evade both Deidara's clay explosions at point-blank range on multiple occasions, and attacks from the extremely fast Killer B and A, though he credited the last to his Sharingan's ability to read their linear moves. He also greatly increased his hand speed, able to do many hand seals in a blur and launch an enormous amount of weapons just as quickly, as seen during his fight with Itachi. His speed and proficiency with the Body Flicker Technique have also grown considerably, able to easily cut his opponents down without them noticing. When first facing Team Kakashi with Sasuke in Part II, he showed himself able to cover wide gaps in the blink of an eye, giving his former allies no time to react.

Ninjutsu

Bukijutsu
Since early childhood, Kyofu has displayed great skill and use of various ninja tools which has grown and diversified over time. Kyofu was trained in kunai and shuriken during his childhood. He is also skilled in the use of wire strings, using them for a variety of purposes ranging from rappelling, to manipulating the path of his shurikens, to ensnaring an opponent and setting them on fire. His level with both trap and weapon-based tactics even surprised Shi during their first bell test.

Kenjutsu
During his time with Orochimaru, Sasuke was trained in kenjutsu, and became a skilled swordsman. He also acquired a snake sword, and the use of kenjutsu has become a major part of his fighting style. With these kenjutsu skills, he was able to incapacitate hundreds of Oto-nin during his training without killing them.His skills with a sword were better shown during the Kage Summit, where he was able to effortlessly outfight and kill multiple samurai, and even deflect their barrage of chakra blasts.He even skilfully blocked an attack from Mifune, a famous master swordsman, who acknowledged Kyofu's ability with this combat form.

Kyofu's lethal swordsmanship is shown to be very versatile, using impressive speed and precision behind his attacks, leaving little time for enemies to dodge or counter. He can effectively use it in either a normal or reverse grip, giving him various attack styles and the ability to attack or defend from various angles, allowing him to easily change his attack type to suit the situation. He can use his blade as a mid-range projectile with great precision as seen during the battle against Kabuto.

Shurikenjutsu
Kyofu is also well-versed in weapons use such as kunai and shuriken. At the start of the series, he could use techniques like  Shadow Shuriken Technique  in which he could hide one shuriken in the shadow of another and the  Manipulated Shuriken Technique, which allows him to control the path of giant shuriken using  wire strings. Due to his Sharingan, he can use an advanced version of the latter technique, the  Manipulating Windmill Triple Blades  which allows him to control a larger number of shuriken and even use them to ensnare an opponent with the strings. Since his battle and defeat with Itachi, Kyofu started using a bracelet with a special seal that allowed him to instantly summon shuriken, thus increasing the amount he carries at any one time and launch speed. He has also demonstrated the ability to increase the lethal properties of the Fūma Shuriken by rigging it to disconnect its four blades and launch them into separate directions. Sasuke has also shown the ability to match his shuriken and Fire Release skills for techniques like Fire Release: Phoenix Sage Fire Technique or he can infuse a fūma shuriken with lightning chakra for increased cutting power.

Summoning Technique
During his training under Orochimaru, Sasuke learned many of the Sannin's snake-oriented techniques. He became able to summon various-sized snakes to aid him in battle, even hidden from his sleeves to strike or bind his opponents with little time to react. After gaining some of Orochimaru's power before Sasuke killed Orochimaru, Kyofu gained access to Orochimaru's regenerative powers that allowed him to heal at a much faster rate than usual, and access Orochimaru's chakra as extra reserves, although he preferred not to.He was also able to summon snakes from any part of his body, and could use Orochimaru-Style Body Replacement Technique to shed his skin and produce a new body, thus repairing any damage he sustained.

To symbolise his and Sasuke's ascension from snakes, Sasuke changed his team's name from Hebi to Taka. It is revealed that his animal-oriented techniques also includes eagles as shown from him summoning an eagle that he used to fly around on as he was watching Sasuke's fight with Danzō.

Nature Transformation
Kyofu's main transformation is Wind Release through his trademark gunbai to create powerful gusts of wind capable of repelling an entire platoon of shinobi. As a true genius ninja and member of the Uchiha, Kyofu has great proficiency in Fire Release nature manipulation. By age 9, he had already mastered his clan's rite of passage technique, the Fire Release: Great Fireball Technique. Even Shi was amazed at such a feat as, according to him, Genin usually require much more experience and developed chakra to perform elemental techniques. He can also use his fire techniques in conjunction with his weapon skills.

After learning that Kyofu can also manipulate Wind Release nature manipulation,Shi taught him the Wind Cut, made more effective when combined with his Sharingan. With this combination, Sasuke can destroy most obstacles with relative ease, as well as severely damaging any opponent during most uses.

Over the timeskip, Kyofu put a great deal of time developing his wind-based chakra, having mastered it to create many new techniques of said type, most of these revolving around his Wind Cut, which he has refined. When first seen in Part II, he was able to channel his Wind Cut to emit glowing wind currents from all over his body as a shield that cuts those it comes into contact with. He can also channel the Wind Cut through his sword through "chakra flow", giving the blade extreme cutting power and allowing it to numb anyone it cuts. This is powerful enough to slice through a chakra wave created by a similar sword technique. He can also concentrate it into a sword and solid senbon in order to make more precise attacks. He is also able to infuse shuriken with lightning chakra. Kyofu's most powerful elemental technique is Wind Dragon, a wind technique that uses natural wind as opposed to chakra, allowing Kyofu to perform it even when visibly exhausted. If there is no wind available, Kyofu can use an earth release to create thunder clouds. Kyofu then takes control of the wind, shapes it into a dragon, and then brings the lightning down on his target. The technique is so powerful that it has the ability to destroy a mountain, as well as break through the defences of Itachi Uchiha's Susanoo.

After adjusting to the powers of his Mangekyō Sharingan, Kyofu has developed an advanced Fire Release known as the Blaze Release; an element that draws its power from Amaterasu. Aside from unleashing a wave of unquenchable black flames that incinerates everything that reflects in his eyesight, Kyofu can control the movement of the flames into surrounding him and creating spikes to protect himself. As such, he was regarded as more skilled with it than Itachi was by C. After gaining his Eternal Mangekyō Sharingan, he can use his Amaterasu orb to wrap the black flames around his Susanoo's various weapons, even using it to create tomoe-like projectiles that can be fired in a wave.

The Dark Release is an advanced release that can be used to absorb, manipulate, and release chakra taken from an opponent. Kyofu used techniques of this nature through a mark on his left hand. This mark resembles two diamonds, one overlapping the other. Chakra is absorbed through the upper square, while it is released and manipulated through the lower. It is unknown what elements this nature entails. The Swift Release is an advanced nature release that can be used to move at virtually instantaneous speed, granting the user an advantage over opponents with more strength than speed, such as users of Chakra Enhanced Strength. This nature therefore renders the user invulnerable against most taijutsu. It is unknown what elements this nature entails.

Dōjutsu

Sharingan
As a member of the Uchiha clan, Kyofu possesses the Sharingan, the clan's kekkei genkai. This dōjutsu grants Kyofu all the Sharingan's standard abilities such as analysing and predicting movements, as well as copying enemy techniques into his arsenal. He first developed it at age 9, during Itachi's departure from Konoha after the Uchiha clan massacre, with one tomoe in each eye. By the time he fought Rock Lee, both eyes had two tomoe. During his battle against Naruto, it reached completion with three tomoe in each eye. In developing his Sharingan prowess, Kyufo drastically increased his time periods to which he can maintain it, with little effect to his chakra levels, even in prolonged fights against several high-level opponents.

While making good use of it in Part I, Kyofu also developed a number of more novel uses for it in Part II. During his encounter with Rai, Kyofu's Sharingan could enter Rai's subconscious and effectively suppressed his lightning chakra. In this instance.In Part II, Kyofu regularly uses his Sharingan genjutsu abilities, which grew considerably strong, to easily hypnotise opponents, replay memories,paralyse his target,   and control a mighty summoned creature like Manda.When Orochimaru later tried to take over his body, Kyofu was able to use his Sharingan to turn Orochimaru's technique against the Sannin. He was also able to break out of Itachi's Tsukuyomi after enhancing his Sharingan with the power of his cursed seal, much to his brother's shock.

Mangekyō Sharingan
Kyofu awakened his Mangekyō Sharingan after the death of his best friend, Sakkaku. Kyofu's Mangekyō takes the appearance of three intersecting ellipses. Like other Sharingan, which have a black design and red background. His Eternal Mangekyō took the shape of his old Mangekyō Sharingan.

Customary of the dōjutsu, Kyofu's Mangekyō Sharingan damages and gradually reduces his eyesight every time he uses it, causing him to experience great pain and extreme fatigue as well as causing eye bleeding with each use. While resting after his fight with Killer B, Kyofu found that his vision was slightly blurred and during his battle with Shi, unleashing Susanoo's final form caused his vision to worsen, leaving him unable to maintain the technique.

The first technique that Kyofu has displayed using the Mangekyō was Tsukuyomi, allowing him to break a target's will and paralyse them.However, Sai denounced Kyofu's might with the technique, reiterating Itachi's ability to alter a victim's perception of time while under his Tsukuyomi. Despite this, Tobi noted that Kyofu's resourcefulness and precise timing in its use are able to somewhat make up for the illusion's lack of power. The second technique was Amaterasu. When Kyofu first used it unintentionally on Tobi. When he later used it on his own, they took his own Mangekyō Sharingan form. Various characters have implied that his skill with Amaterasu surpasses Itachi's, as he is able to both control and extinguish the flames with his right eye.

Kyofu is one of the rare few Uchiha who obtained the ability to use Susanoo, which he can use in the same manner as his Cursed Seal, manifesting single parts at a time; the technique's development is dependent on Kyofu's extreme emotion, usually anger. Kyofu initially uses incomplete versions of Susanoo due to various reasons. During his fight with Sai, he uses a more complete version, and demonstrates its ability to use different weapons. Later on, during his fight with Kakashi, he perfected his Susanoo into an armoured form similar to Itachi's. Like Itachi, Kyofu's Amaterasu comes from his right eye, and Tsukuyomi along with his ability to manipulate and extinguish the black flames from his left eye. The last ability Kyofu demonstrated with his Mangekyō Sharingan was a technique that manipulates the black flames of Amaterasu known as Blaze Release.

Following the acquisition of the Eternal Mangekyō Sharingan, the usage of this dōjutsu or any of its techniques doesn't appear to affect his chakra reserves nearly as much and his health at all. His Susanoo's final form also underwent a new change as the armour's hood gained a beak-like shape, its hands gained scales and it wields an orb composed of the black flames of Amaterasu on its second right hand, from which he can produce either a blade to stab his opponents, or fire several tomoe-shaped projectiles that can incinerate a foe on contact. The bow in its primary left hand also grows in size and takes on a more shield-like appearance.

Chakra Prowess
Even by Uchiha standards, Kyofu has exceptionally strong chakra. At age 9, he was already able to use his clan's  signature fire release technique. This later surprised even Kakashi, as such techniques usually require more developed chakra. In Part II, his reserves grew considerably greater, able to use many highly chakra-consuming techniques in a day, even recklessly using three different  Mangekyō Sharingan  techniques plus Wind Cut multiple times respectively without visible exhaustion; able to continue fighting effectively with plenty of stamina left against the Kage. Also, even when extremely weakened, he could summon  Manda, a high level summon. Quality-wise, Kyofu's chakra is very powerful; its strength is compared to that of Madara Uchiha's, whose chakra was particularly strong even amongst the Uchiha. When Kyofu first arrived at the Land of Sound and gave Kabuto a frightening glare, both he and Orochimaru noted Kyofu's exceptional chakra.Likewise, his chakra control has also grown considerably. With many high-level techniques, usually lightning, wind and fire-based, he can perform them with few to no hand seals, giving his opponents little time to react.

Gradually, as Kyofu continued to sink deeper into darkness, his chakra became noticeably darker. Even Kurama noted that Kyofu's chakra has become even darker than his own, and even similar to that of Madara's.Karin has also mentioned that Kyofu's chakra, as he approached the point of manifesting Susanoo, had become even darker, and colder than the corrupting influence of the second stage Cursed Seal of Heaven, and has since continued to grow even more potent along with the development of Susanoo.

Intelligence
From a young age, Kyofu has repeatedly shown keen instincts and quick decision-making, causing many to consider him a genius. Able to easily learn various advanced techniques or utilise basic ones for crafty manoeuvres, Kyofu already became a stand-out before graduating the Academy. He is a proficient strategist, observing his opponent's skills and deducing their workings with ease and accuracy while remaining calm and composed. He then chooses the most effective means and ninjutsu to counter them.His resolution enables him to pick strategies in which he requires getting injured in order to defeat the enemy, thereby showing tremendous endurance and willpower.

Kyofu is also a very capable leader, able to form a team from specific ninja after scouting them out and quickly command their respect and cooperation. Furthermore, he can effectively instruct his team to engage an enemy. He also showed the ability to perform a series of precise and coordinated attacks with his cousin Itachi with minimal planning despite their previous volatile relationship.

His intelligence also allowed him to develop many powerful techniques on his own, all based on the one technique his teacher taught him. From the Wind Cut, Kyofu mastered the principles of Wind Release, and created many innovative techniques that are derived from it. He was also able to combine techniques together to create the right atmosphere for the Wind Dragon, utilising weather manipulation to create a powerful tornado storm. In order to defeat his former mentor Orochimaru in a sparring match, Kyofu did extensive research of his various abilities, such as the nature of his snake summons and techniques as well as his unique cursed seals.

Other Skills
Under Orochimaru's training, Kyofu was subjected to the Sannin's experiments and as a result developed physical enhancements including an immunity towards most forms of poisons, to a level that the one Sakura learned from Shizune would not affect him.However, he was not immune to the effects of Orochimaru's true form's poisonous blood. His training has also given him great skill in fūinjutsu and is also otherwise quite knowledgeable in other seals, such as Orochimaru's cursed seals. As an Uchiha, he is also one of the few who can access the Naka Shrine.

Introduction Arc
Upon the formation of Team Shi, Rai, Mizu and Kyofu were forced to mingle. Kyofu tried to avoid both of them, but he kept getting drawn into Mizu and Rai's trouble. Accordingly, Shi gave them a battle test, the three of them being tasked with each one defeating one of his three clones. Kyofu tried to take a defeat the clone himself, ignoring his team-mates in the process, failing regardless of having a better success rate. Regrouping with his team, they all realised that the true goal of the test was to learn to place teamwork above the single-handed completion of the mission, and, in doing so, were allowed to pass.

Land of Waves Arc
Kyofu's first major mission was escorting the blacksmith, Tetsu, to his home in the samurai Land of Iron. Soon after setting out, Kyofu showed exceptional skill when attacked by Jonin level ninja, even taunting Rai for being shocked and useless during this encounter. When they later had a tree-climbing exercise to improve chakra control, he managed to stay ahead of Rai for a good length of time, but as Rai began to catch up, they started to push each other's limits. His skills improved, Kyofu was almost able to compete with Ken, who was extremely dangerous because of his extreme speed and dexterity. It was during this battle that Kyofu revealed the legacy of his clan, the  Sharingan, and even selflessly put himself in the way of Ken's attack on Rai to protect him. Although he claimed his body had moved on its own, his actions showed that he was willing to put himself in mortal danger for Rai's sake. Although it appeared that Kyofu had died in the process, it was later revealed that he was merely put in a temporary death state.

Chūnin Exam Arc
Before the Chūnin Exams started, Kyofu fought Neji, who uses his speed to defeat him with his taijutsu prowess. However, before the finishing blow could be given, Might Guy interrupted the match and punished his beloved student. In the first part of the exam, Kyofu realised that, to succeed in the written test, it is required to cheat without getting caught, using his Sharingan to copy the pencil movements of a student in front of him, effectively copying the answers.

In the second test of the Chūnin Exams in the Forest of Death, Kyofu was attacked by a Sunagakure Genin, Gaara. However, with Rain urging him not to surrender to the ninja, Kyofu defeats Gaara and walks away with his team. Kyofu matched up in the preliminaries was against Sasuke Uchiha, his little cousin. The match started with Kyofu pummeling Sasuke with ease, and with Sasuke being in constant pain from his cursed seal, it made it easier. Kyofu got bored and quit the match, not wanting to kill his only relative.

Following his forfeit, Kyofu went back home, and then saw his closest friend, Sakkaku standing in his room. Sakkaku tried to attack Kyofu, but Kyofu dodged, Sakkaku then subdued him with a genjutsu. Sakkaku smiled and said see you in a month. A month had passed and Kyofu had awoken from his genjutsu. Kyofu ran to the match between Sasuke and Gaara. Suddenly, an Oto genin subdued the watching Kage, and Orochimaru appeared with his army of Oto and Suna-nin.

Invasion of Konoha Arc
At the beginning of the invasion, Kyofu ran to fight Kabuto. Kyofu was obviously overpowered, and was getting pummeled by Kabuto. Kyofu grew infurious at the beating and unleashed his Mangekyo Sharingan, and unleashed Susanoo. Kabuto dodged Susanoo's attacks, and Kyofu decided to take in to his own hands again. He unleashed his Amateresu to subdue Kabuto and he stabbed Kabuto from behind. Kabuto puffed into smoke, and Kyofu had just realized he was fighting a Shadow Clone.

Soon enough, Sakkaku was standing infront of him, wearing his headband with the Konoha symbol on it. Kyofu was on his knees and he was fatigued. Kyofu grabbed his kunai and threw it at Sakkaku's headband, cutting it off and setting it ablaze. Sakkaku threw a kunai at the weakened Uchiha, apparently killing him.

Kyofu had awoken in the hospital, bandaged and bruised. Sasuke looked over at Kyofu, he too injured. Kyofu smiled and stated that they will need to get stronger. When the medical-nin exited the room, Sasuke told his most dear family member about what Orochimaru had offered him, and Kyofu agreed. The two were realesed from the hospital and went to the Naka Shrine. Kyofu was surprised to hear about the Third Hokage's tragic fate, and smirked evilly.

Search for Tsunade Arc.

After the failed invasion, Kyofu and Sasuke went to see Kakashi, and later were seen reading the stone tablet in the Naka Shrine. When they arrived at Kakashi's house to see him again, they found the Jonin in a coma. Although nobody in the room was willing to tell Kyofu and Sasuke of what had happened, Aoba Yamashiro soon arrived and let slip that Itachi had returned to the village in search of Naruto. Determined to find Itachi, Sasuke and Kyofu tracked Naruto down and find the other Uchiha there. Despite his best efforts, including the use of One Thousand Birds, none of his attacks were able to hit Itachi. Itachi tormented Sasuke physically and mentally, belittling him for still being too weak, eventually leaving Sasuke with a broken wrist and mind. Sasuke then fell into the same Tsukuyomi-induced coma as Kakashi. Kyofu enraged at Itachi, put his chakra into one fist and attacked Itachi with his Wind Cut, only minorly damaging Itachi. Itachi roundhouse kicked Kyofu into a pile of rocks, shattering the rocks and seriously injuring Kyofu. Kyofu was bleeding internally, but he still continued to fight, continuing to get pummeled/ He was close to dying when Itachi finally got bored and left. Guy appeared to take Sasuke back to Konoha, however, it was not until Tsunade returned to Konoha that he recovered.

Sasuke Retrieval Arc.
Motivated by anger over Itachi still being stronger, and his jealously to his team-mate for becoming stronger in a short period of time, Sasuke forces Naruto into fighting him, while Kyofu, before Kakashi stops the two as they use their strongest attacks on each other. Although thinking his Chidori did the most damage to a nearby water tower, Sasuke is shocked to find Naruto's Rasengan obliterated one whole side of it without the structure being compromised. After being lectured by Kakashi over not using Chidori on his own friends, Sasuke and Kyofu were confronted by Orochimaru's Sound Four, who have been sent to bring to them to Otogakure. Revealing themselves and their comrades being branded with cursed seals with full mastery over them, Sakon leaves Sasuke and Kyofu with the offer to come with them if he wishes to use his cursed seal's true potential. Deciding to take Orochimaru up on his offer, the two brothers are confronted by a shocked Sakura as they sneaks out of Konoha. Despite Sakura's desperate pleas, Sasuke thanks her before knocking her out and joining up with the Sound Four, the two soon afterwards advanced their cursed seals to its second level, a process that left them unconscious for most of their battle with the Sasuke Retrieval Team.

Soon after the Uchihas woke up, they ran their way towards the Valley of the End where they are found by Naruto, who had learned Orochimaru's intent to turn Sasuke into his next host. Seeing Naruto, Sasuke reveals his intents to kill him to obtain the Mangekyō Sharingan. Naruto refused to accept that Sasuke would do this or his other reasons for pursuing Orochimaru, choosing instead to drag Sasuke back to the village by force if needed. With Sasuke gloating that Naruto can not even make a scratch on his forehead protector, he initially having the upper hand thanks to his cursed seal and Sharingan. When he managed to pierce Naruto's right shoulder with his Chidori, however, the Nine-Tails' chakra surfaces to protect Naruto, giving him a massive power increase as he attempts to knock some sense into him. Sasuke merely retorted that Naruto could never understand losing a family as he had never had one to begin with, despite Naruto feeling that Sasuke is like a brother to him and refuses to let him sever that bond. Sasuke's Sharingan evolved to its final stage at that point, tipping the battle in Sasuke's favor with Sasuke now being able to predict Naruto's movements. However, Naruto's Nine-Tails' chakra envelops him in a fox-shaped shield of chakra.

In response, Sasuke activated the second stage of his cursed seal as both he and Naruto clash with their respective empowered attacks. Clashing with the dome produced from the conflicting energies, Sasuke defeats Naruto with a punch to the chest rather than what remained of Chidori. But before the dome dissipates while losing consciousness, Naruto managed to scratch Sasuke's forehead protector as it falls off of him. Though considering to kill Naruto then and now, Kyofu convinces Sasuke to have second thoughts and resolve to find his own way to surpass Itachi. Leaving behind his scratched forehead protector, which had fallen off after Naruto's last attack, Sasuke and Kyofu made their way to Orochimaru, who decides to train the Uchihas until the time to make one of the youths his new host comes.

Sasuke and Sai Arc
Almost three years after leaving Konoha, Sasuke and Kyofu meets Sasuke's replacement in the renamed  Team Kakashi ,  Sai. Despite a lack of interest in Sai, Sasuke is inadvertently provoked and subjects Sai to a genjutsu exuding a large amount of  killing intent. Sai is amazed that even an emotionless person such as himself was affected by Sasuke's gaze, channelling through his Sharingan. When Sai comments on how Naruto and Sakura have been searching for him, Sasuke once again regards him with indifference in attitude. Later, when Team Kakashi infiltrates one of Orochimaru's hideouts successfully under the leadership of Yamato, Sai, acting on his own, locates and enters Sasuke and Kyofu's room while they were resting in a bid to assassinate him as ordered by his superior in Konoha's  Root   faction,  Danzō Shimura.

However, after spending quality time in Team Kakashi, especially with Naruto, Sai comes to understand the meaning of bonds of friendship, and decides to help Naruto save the Uchihas. However, enraged on being disturbed, Sasuke and Kyofu destroy the room, drawing Naruto, Sakura and Yamato to their location. Despite this being the first time in nearly three years that they had seen each other, Sasuke expresses his usual indifference towards his former team. Unperturbed of Orochimaru's intentions for him and the prospect going home to Konoha with his former friends, Sasuke engages them in battle, as Kyofu watched on, showing off his increase in speed and improved abilities.

Team Kakashi are ultimately outmatched against Sasuke, mostly due to the team's exhaustion with Naruto's four-tailed form, causing Naruto to begin struggling with Kurama in his mind. To the surprise of both Naruto and Kurama, Sasuke and Kyofu used their heightened prowess of the Sharingan to enter Naruto's subconscious to meet the Nine-Tails itself, finally discovering the true source of Naruto's strength. Kurama appears to be impressed with the Uchiha's growth and ability as it states his chakra being as "sinister" as Madara Uchiha's. Sasuke coldly dismisses knowing such a person and uses his Sharingan to suppress Kurama back into its sealed cage. Kurama concludes that this would probably be its last meeting with Sasuke, so it warns him not to kill Naruto, for he would only end up regretting it. Back outside, Kyofu decides to finish off the Konoha ninja, starting with Naruto, only to be stopped by Orochimaru as the prospect of them and other Konoha shinobi thinning out the Akatsuki would make his revenge easier. Accepting the notion, Kyofu leaves with Sasuke, Orochimaru and Kabuto.

Itachi Pursuit Arc
Some time later, Orochimaru tests Sasuke and Kyofu's abilities by having them battle hundreds of Otogakure ninja seperatly with no compassion or mercy, a task he completes without taking a scratch and without killing any of them. When inquired about the latter part of the scenario, Sasuke remarks that the only person he wants to kill is his brother, Itachi, and leaves to his training room. Kyofu had killed all of the ninja and walked away. Soon afterwards, as Orochimaru reaches the limit of his present "vessel" containing his soul, which starts degrading his health, he is notified by Kabuto that the time for his ritual to take over Sasuke's body is near. As Kabuto leaves to get some medicine, a vulnerable Orochimaru is unexpectedly attacked by Sasuke and Kyofu, who deems Orochimaru too weak to be worthy of having his body or the Sharingan. Although Sasuke appears victorious after a brief scuffle with Orochimaru's true snake-form, he is nevertheless brought to Orochimaru's subconscious for his Living Corpse Reincarnation. Having severely underestimated Sasuke, it is Orochimaru, in turn, who is absorbed to a dormant state within Sasuke, who is able to reverse the process using his Sharingan and hence, gains access to all of Orochimaru's abilities. Sasuke then transfers some of Orochimaru's power to Kyofu.

With Orochimaru gone, Sasuke and Kyofu goes ahead with his plan to locate and kill Itachi, by first recruiting some of Orochimaru's former test subjects — Suigetsu Hōzuki, Karin, and Jūgo — on the pretext of granting them virtues for their themselves after the success of their mission, Suigetsu wants to obtain Samehada by killing Itachi's Akatsuki partner, Kisame Hoshigaki; Karin wants to be with Sasuke due to her massive crush on him since their meeting; and, Jūgo wants to see if Sasuke was indeed worth of his dear friend, Kimimaro's sacrifice, and dubs their team Hebi. And immediately afterwards, Sasuke had his team split up and learn of Itachi's potential whereabouts. While searching alone, Sasuke and Kyofu is found by Akatsuki members, Deidara and Tobi, with the former wanting to kill him for defeating Orochimaru himself. Using his Sharingan and lightning-based techniques, Sasuke manages to counter most of Deidara's attacks, fueling his pre-existing hatred for the Sharingan, stemming from his past encounter with Itachi, even further, which to him could not see or admire his "art". As a last ditch effort, Deidara uses C0 to try blowing himself up along with Sasuke in a titanic explosion, which obliterates everything in the nearby vicinity. Sasuke, however, summons Manda in time and uses his Sharingan to have the great serpent shield him from the explosion, at the cost of his life, later admitting to Karin that he only defeated Orochimaru because he was already weakened after the latter shows disbelief that he could have. Kyofu noticed something about Tobi, but he didn't know what it was exactly, he looked on, and noticed Tobi's back hair, and how his skin was pale like most Uchihas. Tobi disappeared before he could finally put it together. After recovering from his wounds, Hebi continues onto one of Akatsuki's lairs, where Sasuke finds a crow clone of Itachi which expresses admiration over Sasuke's growth in power and tells him they will have their battle at the Uchiha Hideout, leaving the rest of Hebi behind to deal with Kisame.

Once inside the Hideout, Itachi tells the two younger Uchiha the cursed history of their clan, of "Madara Uchiha" being still alive as another Uchiha besides themselves, and his desire to obtain the flawless Eternal Mangekyō Sharingan by taking Sasuke's eyes. Once he finishes, the brothers first fight in a battle of genjutsu, where Sasuke demands the location of Madara so that he can kill him too, but after Itachi declares him to be "immortal", he ensnares Sasuke in a Tsukuyomi, from which Sasuke breaks free, much to Itachi's surprise, due to his immense mastery of the Sharingan. With Zetsu witnessing the battle, Itachi appears somewhat weaker to dodge some of the simplest attacks from Sasuke and even coughs blood. Notwithstanding Itachi's condition, Sasuke unleashes a fireball, provoking Itachi to do the same. As Sasuke's fire gains on Itachi's, the latter resorts to using his Mangekyō Sharingan technique, Amaterasu, which ignites the area in the undying black flames, and almost burns Sasuke. But Sasuke survives using one of Orochimaru's techniques, and in his cursed seal second state, launches Fire Release: Great Dragon Fire Technique, which creates anartificial weather condition around them, perfectly suitable for Sasuke to attack Itachi with his final lightning technique that uses the power of natural lightning itself: Kirin. But Itachi barely survives, only by his use of the third and final Mangekyō technique, Susanoo.

Having used the last of chakra on Kirin, Orochimaru, who has been absorbed and suppressed by Sasuke's chakra, uses this opportunity to reappear in the outer world through one of his eight giant snakes in a last attempt to take Sasuke's body for his own. However, before this could happen, Itachi has Susanoo use the Sword of Totsuka to seal him permanently in a genjutsu realm, thereby removing every tint of Orochimaru's being from Sasuke, including the Cursed Seal of Heaven. Cornered by an incoming Itachi, Sasuke watches in horror his brother inevitably aiming for his eyes, but is flabbergasted when, instead, Itachi says a few words and collapses to his death, after poking him in the forehead- something Itachi would regularly do to Sasuke when they were younger. Shocked and exhausted, Sasuke too passes out, albeit with a smile due to the accomplishment of his lifelong mission. Kyofu frowned at seeing the bloody mess. " Itachi...", said Kyofu. Tobi appeared next to Kyofu and told him to follow behind him with Sasuke's body.

Sasuke wakes up in a cave in the care of Tobi and Kyofu, Tobi quickly reveals himself to be Madara Uchiha. As Tobi tries to befriend Sasuke by removing his mask and revealing his Sharingan, Sasuke's left eye and Kyofu's right eye reacts to Tobi's Sharingan and triggers Itachi's Mangekyō Sharingan which castes Amaterasu, setting the masked man on fire, causing themto retreat into the darkness of the cave. After dispelling the black flames with ease, an unscathed and masked Tobi appears again and begins to muse about how Itachi never ceased to amaze him. As Sasuke asks what he was talking about, Tobi reveals that Itachi had most likely implanted a one-shot Amaterasu in Sasuke's eye to attack if and when he saw Tobi's Sharingan. As Sasuke and Kyofu complain that he is making no sense, Tobi makes startling revelations that it had been to protect him, and, when Sasuke still didn't believe him, Tobi said how it must all sound crazy, but assured him that he was telling the truth, and introduced himself as the man who had helped Itachi to slaughter the entire Uchiha clan.

Tobi reveals to the younger Uchihas the "truth" of Itachi: that he killed his clan by orders from Konoha, how he joined Akatsuki to keep an eye on the organisation from the inside to keep his village and his brother safe, and that everything he had done was to make sure Sasuke and Kyofu grew strong. Remembering his childhood of how Itachi really was a kind, good brother, Sasuke developed his own Mangekyō Sharingan. He renamed Hebi to Taka and vowed he would destroy Konoha after crying over the memories of his beloved older brother. Invasion of Pain Arc Before Hebi, now renamed Taka, could attack Konoha, Tobi convinced them to start working with Akatsuki. He sent them to the Land of Lightning to capture the Eight-Tails, where they found its host, Killer B. The capture attempt got off to a bad start, as Killer B swiftly overpowered both Suigetsu and Jūgo, prompting Sasuke to face B one on one. Sasuke was unable to read Killer B's unique kenjutsu and B ultimately stabbed Sasuke with six swords. Sasuke was rescued and healed by Karin, and the team decided to all attack at once. While they had more success, Killer B released a great deal of the Eight-Tails' chakra and created a chakra cloak. When Sasuke attempted to use a genjutsu to knock B out, the Eight-Tails broke him out of it and B retaliated on the unaware Sasuke with great force, using the Eight-Tails' power to blow Sasuke's neck and chest open.

While Sasuke was down, Killer B fully transformed into the beast sealed within him, leaving Taka outclassed. Jūgohealed Sasuke by fusing some of his own flesh with Sasuke's body and Suigetsu allowed the team to flee and protected them from Killer B's Tailed Beast Ball. Fearing the deaths of he and his team-mates, Sasuke unleashed his new Mangekyō Sharingan and Amaterasu to capture Killer B.

Sasuke delivered Killer B to Tobi before regrouping with Taka. While resting, Kyofu dealt with J esily, who had been following them. However, when Sasuke tipped over a glass of water, he learned that his eyesight was already starting to deteriorate. He opted to keep this revelation from the team.

Five Kage Summit Arc
Once Taka recovered from their battle with Killer B, they headed for Konoha, but are intercepted by Tobi. He informed Taka about the destruction of Konoha and their failure in capturing the Eight-Tails which had been revealed to be nothing more than a transformed tentacle. He also told them about Danzō Shimura becoming Hokage and the Kage Summit. Taka was led to the Land of Iron, where the summit was held, by White Zetsu.

Taka managed to infiltrate the summit without being detected, but their cover was blown by Zetsu, on orders from Tobi. Forced out of hiding, Sasuke and Kyofu, engaged the samurai guards and Sasuke slaughtered them despite his previous strict no-kill policy, revealing how deep he has fallen into darkness. The Fourth Raikage, still under the impression that Sasuke has killed his younger brother Killer B, confronted Taka together with his escorts. The ensuing fight was interrupted by Fith Kazekage Gaara and his escorts, Kankuro and Temari, Temari quickly fell in love with Kyofu, but not before the Raikage had lost an arm and Sasuke was near exhaustion. After seeing how dark Sasuke had become, the Kazekage continued the fight, but Kyofu dealt with Gaara, and was then jumped and hugged by Temari. Kyofu wondered what the Suna ninja was doing, but it turned out that Temari was the girl Kyofu had saved years ago. asuke used his Susanoo to create a distraction and escaped with Karin and Kyofu, leaving Suigetsu and Jūgo to fend for themselves.

Karin guided Sasuke to the room where the summit was held, but before he could engage Danzō, Sasuke was confronted by Mifune. In the meanwhile, Danzō managed to escape, but the Fifth Mizukage prevented Sasuke from pursuing him. Sasuke was ready to pass out, but was reinvigorated by Zetsu's Spore Technique. He escaped from the Mizukage, only to be confronted by the Third Tsuchikage. He was just barely saved by Tobi, who pulled him Karin, and Kyofu into another dimension using his Sharingan, where Karin nursed Sasuke back to health.

Tobi brought Sasuke out in front of Danzō. Sasuke, overtaken by his lust for revenge, advances his Susanoo to a form able to fire arrows. Danzō, using Izanagi, avoids fatal injury and goads Sasuke about Itachi all the while. Each determined to kill the other, they clash again, Danzō relying on Izanagi to save him. Sasuke, however, had used a genjutsu to only create the illusion that Izanagi was still active, allowing him to mortally wound Danzō. Danzō takes Karin hostage in an attempt to buy time, but Sasuke had no hesitations in fatally wounding Karin in order to finish off Danzō.

With his revenge against Danzō fulfilled, Sasuke declared his plans to go to Konoha. However, Tobi pointed out that Sasuke was exhausted and near blindness. He also told Sasuke to kill Karin if she was no longer of any use, before leaving himself. As Sasuke was about to kill Karin, Sakura suddenly appeared and interrupted him. She told him that she was willing to follow him, even if it meant abandoning and even destroying Konoha. Sasuke was sceptical and told Sakura to kill Karin to prove she was sincere. However, as Sakura hesitated, Sasuke attempted to kill her with his Chidori, only to be stopped by Kakashi, Kyofu kicked Kakashi away and was in a stronghold with him. Kyofu jumped and kicked Kashi's face, and jumped right next to Sasuke. Sasuke laughs at their continued attempts to convince him to return to Konoha and attacks Kakashi, with the intention of killing him. Taking Kakashi's attempt to remind him about his former comrades in Konoha as an insult to Itachi, Sasuke's Susanoo gained a layer of armour. However, this form was short-lived, as much to Sasuke's horror, his eyesight deteriorates instantly, to the point of seeing a blurred haze at most, and Sakura uses the opportunity to try and strike him down.

Sakura ultimately cannot bring herself to kill Sasuke. Though near-blind, Sasuke senses her and nearly killed her, but she is saved by Naruto. Naruto sympathises with Sasuke's motives, to which Sasuke cynically counters with his pleasure of revenge, as well as revealing his crime of murdering Danzō. When Naruto restrains Kakashi to keep him from killing Sasuke, Sasuke uses this opportunity to try once more to kill Kakashi with Chidori, but Naruto counters with Rasengan. As the two collide, he tells Naruto that his only options are to kill him or die. Kyofu then went back to attacking Kakashi. Kyofu was superior in strength, and kicked Kakashi into a mountain, shattering it. Naruto rejects both, stating he has a third option. As their clash sends two flying back, one of White Zetsu's clones appears and cushions Sasuke's fall. Tobi then appears and prepares to take Sasuke and Kyofu away, but he tells him to wait so he can hear what Naruto has to say, which is that if they fight again, they will both die together. Sasuke then becomes angry and demands Naruto to answer why he cares about him so much, to which Naruto replies he is doing it because he is his friend, leaving Sasuke shocked. Despite this unperceived event, Sasuke firmly states he refuses to go back on the path he walks. So, before leaving away with Tobi, Sasuke says that they must have a talk.

At their hideout, Sasuke, Kyofu and Tobi were standing there. Sasuke asks Tobi to replace his eyes with Itachi's eyes, as his vision is almost faded due to his reckless overuse of his Mangekyō Sharingan from battling Killer B, A, Danzō Shimura and Team 7 as he wants to defeat Naruto with his full power. After transplanting Itachi's eyes, Tobi claimed that Sasuke would need time to recuperate from the operation and adjust to the new Mangekyō. Sasuke however remarked that it felt perfect and that he could feel Itachi's power flowing into him.

Trivia
According to the databook(s):
 * Kyofu's hobbies are playing music, sketching and training.
 * Kyofu wishes to fight against Sasuke, Itachi and Madara Uchiha
 * Kyofu's favourite foods are tomatoes, salads and anything with meat, and anything sweet. His least is bitter   food and soups
 * Kyofu has completed 90 official missions in total: 35 D-rank, 5 C-rank, 10 B-rank, 30 A-rank, 10 S-rank.
 * Kyofu's favourite word is "death" (死, shi).