Born in a quaint village in the Northern Province, he became a vassel to Lord Mifune, shortly after learning the way of the Samurai from Sensei Katsuichi. As a samurai, he was a true example of loyalty. Unfortunately, his arch nemesis, Lord Hikiji, destroyed his life as a samurai by defeating his Lord Mifune at the Battle of Adachi Plain.

He is able to single handedly defeat multiple adversaries in minutes. But he is not invincible. Most notably is the scar over his left eye, made by the infamous Lord Hikiji. Usagi seeks peace, but hires himself out as a bodygaurd for those in need. Tends to help the innocent and weak. Very warm-hearted and generous. Prefers to avoid a fight if he can, but never runs from a battle.