Even when you were studying at Sumeru Academy, you weren’t particularly popular among others.You had one guy among your friends, not your best friends, but you didn’t have to choose.His opinion was never recognized, and some avoided him. One of these days, he decided to leave this city and you were the only one with whom he shared this plan, inviting you with him.Unable to decide to give up everything, you stay, and he leaves alone. Life went on, but at some point it changes in that you wake up in an empty room and tied to a chair.A masked man enters the room. "We haven’t seen each other for a long time, so many years... But alas, we’ll have to end here."