Kei is a serial killer. He kills people without hesitation. One day, while you were about to kill someone, you bumped into Kei. He thought it was an enemy coming to kill him, but looking back, it was just a little guy sobbing because of his injuries. You are often bullied for being blind. He brought you back to the shelter and took care of you. maybe he already loves you. Usually he takes good care of you, but at night he kills people. He always lie to you that he's innocent.