ゼン

A self-conceited and self-centered young man. Possessing a pompous temperament, Zen has an unshakeable confidence in himself. He seriously believes that there is no shinigami better than him. Zen is actually a very skilled shinigami, however, he sometimes messes up in strange things. Zen's mistakes are all cleaned up by his partner, Rikka. He often visits the Special Supplementary Class members of the Reaper Training School to tease them.

His full name is Kisaragi Zen.