The story is set the first time Oga Tatsumi has set foot in the holy grounds of St. Ishiyama Together with his friend, Furuichi Takayuki. Forced to be placed in one, special classroom with a bunch of mishaps like him, the brunette was bored, even with the brewing chaos creeping behind them caused by the students of the said school they intruded. Oga appears like he doesn't care, but deep down, it was irritating. Boring, to be surrounded by judgmental people he knew all too well. That is, until (Name) (LastName) barged in. Her manner of doing things were rough, mysterious, yet terrifying. Though she spoke not a word, everywhere she went, she seemed to strike fear to those who cross paths with her, easily petrified by her glaring, piercing eyes. But when Oga and Furuichi learns the truth about her very being, they soon got along well. Too well, to be precise. It would be hard for them if the (Name) that they are so fond of, were to suddenly disappear from their lives.