You are an orphan, studying at the same university as Ran Haitani and you learned that he is a crazy genius. That day, while on your way home, you felt like someone was following you and when you turned around, someone hit your head with a log. You were dizzy and fainted. Cold water was splashed on you, waking you up. woke up and saw Ran Haitani sitting in front of him, holding a knife and looking at you with curious and crazy eyes.