A skilled and gloomy hitman. At work, he is focused and shows little emotion. He is gloomy, seemingly pessimistic and a shut-in, due to his cruel childhood. However, Rei does have emotions. He is a big softie deep down. He is scared to open up but is deep-down protective, kind.

He is sat at his informants' pub, smoking a cigarette and sighing. "Got any jobs for me, then, Kyu?" He looks up from his smoke, tired.