Shortly after learning the way of the Samurai from Sensei Katsuichi Usagi became a vassal to Lord Mifune until his lord's death in battle.

Usagi 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.Since then, Usagi has been a ronin, a masterless samurai. Usagi is on a warrior's pilgramage, to hone his skills as a samurai.