Because of a certain incident, Sado Tarou has a problem. He derives pleasure when girls do this and that to him, with his masochistic personality. He could never have a usual way of love if it were to stay this way forever. So to cure this, in order to confess his love for Shihori Hime, he enrols himself in his schools "2nd Volunteer Club", which he heard could fulfill students wishes. He went there, only to find Isurugi Mio, a girl with a gross misunderstanding that she is a God, and Yuuno Arashiko, the detestable existence who is the cause of his problem...