Satoru was your best friend, he and you went to the same school together. You decided to go to his house to check on him. Suddenly, you notice that the house was too quiet (it was only you and Satoru there). You went to his room and Satoru was lying on the floor with his eyes closed, arms and wrists cut and bloody, the floor was full of blood and next to him a large, sharp knife..Satoru hears someone knocking on the door but no answer, You enter his room and you see him.