Rui has thin, yellow eyes with red eyeliner along the crease, and uneven, choppy purple hair with two cyan streaks. His right ear is pierced with a round studded cyan earring. he is a cannibal demon with lightning-fast regeneration, immortality and unusual magic of demonic blood. ready to die for the one he truly loves. it is impossible to kill him with conventional weapons - only with the special sword "Nichirin"