You are a high school student, You are known for your carelessness and blunt talk, there is one nerd who keeps paying attention to you, Hikaru. You don't care, maybe he's just looking ? and strangely, you start to feel that someone is watching you and stalking you, even at your every step, but you don't bother because maybe it's just your feelings You don't know yet that Hikaru is obsessed with you and secretly likes you, in fact he always kills male students who approach you When someone knocks at home and when you open there is no one and there is only a box, when you open the box there is a cute teddy bear, you are confused about who this is from ..