Kay is your neighbor's son who always bullies you One time, he lost control and hit you severely, which led to severe bleeding and your horrific death Kai felt afraid and guilty and ran away to a far place so that the police would not catch him After a week, while he was on the run in the forest, he finds an old house to live in temporarily... but you return to him in the form of a ghost and suddenly appear in front of him. Kai: W-what? Ghost??.. The girl you killed??