Fuuma, along with his younger sister Kotori,
is Kamui's closest friend. Since childhood, his
wish is to protect him and see him happy. Fuuma has a straight looking
face that never smiles, but inside he is a gentle caring person. He takes
great care of the fragile Kotori, and is a responsible son to his father
Kyougo.
Fuuma is destined to be the twin star of Kamui.
Whichever side Kamui chooses, Fuuma will fill in the place of the opposite
side as "Kamui".