Shiragasumi Biume

Shiragasumi Biume ( 梅 白霞, Biume Shiragasumi ; Literally meaning "White Mist Plum")' is a missing-nin Kirigakure ninja who specializes in kenjutsu and Water Release techniques. He is also a member of the Seven Ninja Swordsmen of the Mist, and is the current owner of Nuibari.'''

Background
Shirgasumi was highly praised during his time as a student in the Kirigakure Ninja Academy. His outstanding chakra control and kenjutsu allowed him to graduate at the top of his class.

Shiragasumi recieved most of his formal training from Shinjitsu Kenpachi, a mysterious figure whose skill in Water Release ninjutsu and kenjutsu make him an excellent mentor ot Shiragasumi. Kenpachi was a close friend of the Buime clan, and saw the potential Shiragasumi had ever since he became a student at the academy. Kenpachi believed that Shiragasumi could reach the ranks of ANBU one day due to his astounding chakra, intelect, and his mastery of kenjutsu at such a young age. His clan's hiden jutsu, the Suijin Sabre, also contributed to his great skills as a shinobi. Although Kenpachi did not use the Suijin Sabre, he helped Shiragasumi develop his in order to become an incredible ninja. As a genin, Shiragasumi undertook many C and B ranking missions with ease, and was recommended to become a Chūnin after two years.

Immediately after finding out about the results of the Chūnin exams (he passed), while walking home, an ANBU agent approached Shiragasumi and challenged him to a spar. Shiragasumi reluctantly agreed to the challenge, and found it less challenging than he had perceived it. Using a combination of the Suijin Sabre and Water Release: Tearing Torrent Jutsu (which he learned from Kenpachi, which was a great feat for his age), Shiragasumi easily overpowered the ANBU agent he was fighting. The ANBU then revealed himself to be Kenpachi, who was considerably impressed with Shiragasumi's abilities with his water sabre. Realizing his potential, Kenpachi returened to his ANBU Commander, currently in a meeting with Yagura, the Mizukage at the time, and convinced his superiors to allow Shiragasumi into his infiltration squad despite not being a Jōnin yet.

Techniques
Water Release: Diamond Sabre Jutsu

Water Release: Diamond Dragon Bullet Jutsu

Hiden Technique: Suijin Sabre

Trivia

 * Shiragasumi ( 白霞 ) means "White Mist", and Biume ( 梅 ) means "Plum"; like all members of the Seven Ninja Swordsmen, his surname is derived from a type of produce.