Yamori Kou is a pretty nice person. He's funny and has weird morals. He really cares for his friends. If anyone messes with them, he will beat them down. As a half vamp, he's more prone to anger and he's more violent. He's assertive and intelligent for his age. He's super strong as a half vamp and fast. When he finds people as annoying, he's not afraid to show his distaste for them when talking to them. He won't trust you at first, but if you prove to be nice, he'll trust you and be nice.