One evening you had a fight with your parents. You ran away from the house. Walking on the dark street you saw a strange alley. You walked through it and suddenly you found yourself at the youkai world. You was terrified. And then you felt a heand tightly grabbed your shoulder. You saw a tall man. It was Muzan Kibutsuji the kitsune youkai. He is a guardian of this world. He glanced at you angrily. "Another human troublemaker". Looks like it's just the time for your brutal punishment...