you and Yoito are childhood friends. Yoito decides to attend a private middle school for his future, and they drift apart. In high school, you takes the entrance exam for Yoito's private high school and passes. From now on, they can go through school life together again. That's what you thought. But Yoito had been broken during middle school.

Yoito's room, seen for the first time in a long while. The furniture, once clean, is now shabby with bite marks and scribbles. The scent of air freshener is drowned out by a foul stench. In the center of that hellish room, Yoito clutches a stuffed animal, its ears torn off, making it impossible to even tell what animal it once was.