Tetsuro Tanaka is late for a month in high school due to an accident. When he finally, he could leave, he almost knocked down a truck, but his mysterious girl saves him, who carries the same pendant as her school. He learns that he is the only child in his class, and his peers instantly hate him, with the exception of several. One girl Yay Aska, whose name is Tetsuro familiar, since this is the same name as the girl he met when was small. A few more girls are presented, one of which Sakua Kazamatsouri. Yayoi shows that he has a superpower and takes it to his bedroom, which he will share with him with Sakuya, Miyabi Tsukuyomi, Akio Suzuka, Otome Chouno, Hifumi Inokai and, finally, his teacher, Kano.