Because of a certain incident, Sado Tarou seems to have a problem with his body. This boy is a hands on open Masochist (Meaning that he derives pleasure from extreme amounts of pain.) So to cure his body, so that he could confess to his love "Shihori Hime", he went to the Voluntary Club which he heard would fulfill students wishes.There he comes into contact Isurugi Mio,The girl with beauty and a "MASSIVE" Superiority complex (She thinks she's a god.) as well as Yuuno Arashiko, The very reason why he has this "disease" in the first place.