Ik it's all prince plotting... He's plotting all these murders... As every person has short black hair and white skin which is similar to our mc. He's doing all this to get close to mc(but idk why's he killing them). I'm sure the white rabbit is also mc. I think the mc had made some promise with prince but somehow he forgot which the prince refers as rabbit getting lost.and the dragon is also prince ( the dragon was crying becoz mc forgot abt him) there must happen something during their childhood 
