Keiji

A battle-hardened rooster who who travels from place to place, never wanting to be tied down (since he is a self-proclaimed "migratory species"). With exceptional strength and a mighty voice, he seeks to defeat any Kijū that he can find.

He is bothered when women are brought to tears because of his actions, and has disdain for children.
In the past, his sister was eaten by a ferocious Kijū. Ever since that day, he roams the land, searching for the Kijū that took her life so that he can exact vengeance.