Sympathetic Illusion

Sympathetic Illusion
Sympathetic Illusion (幻像協心, literally meaning: illusion of sympathy) the term given to the Genjutsu technique allowed by a rare chakra birth defect. It is unknown whether or not this defect is a selective Kekkei Genkai.

Overview
The Sympathetic Illusion, though give it's name due to Fumiko Mitsuwa's use of the genjutsu to give her opponents the world they want, can also be considered as "sympathetic" because rather than target and inturrupt only the opponent's ocular senses, as with most Genjutsu, the Sympathetic Illusion Technique puts a massive amount of the user's chakra and directly interferes with the target's chakra system, controlling all of the senses directly, including sight, smell, touch, taste, and hearing. This not only makes it harder to detect, but also makes it harder to break out of it of overall.

Fumiko's Birth Defect
Fumiko Mitsuwa is the only known living person with this ability, although it is known to have manifested in others. She was born with almost no manifested chakra, which would have caused her death immediately after birth if her Eight Gates had not burst open, allowing the untapped reserves in her body to flow free, giving thhere a slightly larger amount of chakra than is average. Similar to Rock Lee's Frontal Lotus Technique, this also has the averse effect of allowing chakra to run unrestrained through her body and escape from her skin, however, this can only be seen by someone with the Sharingan or Byakugan. This defect makes it impossible to control her chakra inside of her body without the use of Yin Release: Darning Stitch Chakra Technique. However, Fumiko has the unique ability to manipulate her chakras to an extent once outside of her body, subtly affecting various jutsu she uses, such as Genjutsu and Medical Ninjutsu.

Trivia
• The birth defect responsible for the Sympathetic Illusion, because chakra escapes freely and constantly from the body, makes the user extremely warm.