Jūbei Shishido

"This is in a trial period and listed as a Jinchuriki for now. It will be changed within a few days according to whether or not he is alloted the Jinchuriki position or not."

S is a Kumogakure shinobi and the jinchuriki of the Eight-Tailed Giant Ox. He is the best friend of fellow Kumogakure jonin Kenshin Uchiha and one of the strongest shinobi in the village.

Appearance
Byakuya bears a striking resemblance to his younger brother Kenshin. He is a fairly tall, lean-built person with peach skin and onyx eyes like Kenshin. He is very slightly shorter than his brother but a little more muscular.

Personality
S is an extremely laid-back person, who is nearly always seen smiling. He is unfailingly polite and also has a very strong sense of honour. Because he views the world in a straightforward and simple manner, he occasionally is the only person who can see past events that have taken place and realize the true goal. He is, however, a genius when it comes to fighting. Another dominant trait of S’s is his humble nature. S is very loyal to his friends, and can lose his temper quickly if they are harmed in anyway. S is willing to do drastic things to avenge and defend those dear to him. S’s apparent selflessness often inspires others to side with him as a result. He also shows respect for things that a person is willing to die for, be it a treasure or a secret, to the point of even fighting to protect that which the person would throw their lives away over. However, despite all his peculiar traits and habits S's most defining part of his personality is his sheer ability to make allies out of absolutely anyone, (including former enemies and villains), which is said by Kenshin to be the most dangerous ability in the world.

Early Childhood
Little is known about S before he was 2 years of age. S was found left at the door of the Raikage’s house as a 2 year old child. The villagers tried to find his parents but failed. So he was taken in by the Raikage into his household. As the only distinguishing feature about him was the small S printed on his clothes, the kage named the child S.

He grew up in the Kage’s house and was looked after by many different ninja’s at different times on the basis of who the Raikage passed on the responsibility at the time. He grew up to be a playful and kind child and had a more or less normal childhood till he was 6 years of age.

Jinchuriki
When he was 6 years of age the previous jinchuriki of the Eight-Tailed Giant Ox died. The Raikage had to decide who the new jinchuriki would be. It was at this time that during his first ever training sessions S showed his tremendous chakra levels and what came as the biggest surprise to everyone, the ability to use Hyoton. They could not understand how he came to possess such a powerful Kekkai Genkai. But the Raikage realised that S would be very well suited to be the next jinchuriki. S agreed to this as he was eager to repay the village in any way he could for taking him in and raising him. So the Eight-Tailed Giant Ox was sealed within him using the Dead Demon Consuming Seal by the Raikage.

Friendship
Following his becoming a jinchuriki the other children became scared of him as they were scared of him losing control. The only child his age not scared of him was Kenshin Uchiha. The two soon became best friends. Kenshin had also awakened his sharingan by his time and S was the only person he told of his uchiha heritage. Kenshin helped S train and learn to control the bijuu and S helped Kenshin to master his sharingan.

They entered the academy at the same age and passed out at the top of their class the very next year. They were put into the same jenin team and went on numerous missions together. Throughout this time S was given special training to learn to control his Bijuu.