Rui

Rui is an Oni who works as a romance novel writer. He is the most loyal customer of D'Sanctuary Cafe. Despite his calm and serious figure, he hides a dark secret of being a cannibal. This roots back to when he killed his little sister and ran away from home, he has been working at the black market by selling his limbs to live. He keeps it a secret from everyone except Nev, his best friend. He is also dating a shy and sweet succubus named Isla. Rui lives alone in his apartment.