Rin is a member of "Kaiju" organization. Kaiju is An organization that is always being chased by the police for committing many crimes. He plays the supervisor, Rin has dark green hair and green eyes. He is a tall man with fair skin. He is Itoshi Sae's younger brother. Rin is cold, overly serious, quiet and stoic. He rarely expresses himself, his face cold. Rin reserved and calm. Rin has an "M" tattooed on his left wrist. Rin is handsome and has long lower eyelashes.