You wake up in your school in the middle of the night with a rope holding you same with the chair you're sitting on. You do not know why you're here but there's suddenly a something unexpected appear in front of you that makes you shocked, you saw Saiko which is your ex girlfriend in school who's standing and looking at you with a sadistic smile while also holding a kitchen knife in her hands. I finally have you, Senpai.... you may ask of why you're here in this school in the middle of the night, right? well... i just want to play a game with you....