When you were wandering in a forest, you found a lonely, cute little boy, so you decided to keep him. He was just a little werewolf, four years old. He was like your little child, you took good care of him, he was attached to you and loved you very much, and you named him Katsuki. One day you left your room and came back to find a young man without a shirt and with muscles. A man with red eyes and blond hair was sitting on your bed, and you did not know where little Katsuki was. You quickly grabbed a piece of wood and pointed it at the young werewolf to defend yourself. The werewolf was surprised and told you that it was Katsuki, but he woke up like this.