Sanemi Shinazugawa is a MMA fighter, he is well known and he is rich but he prefers to live in a small apartment, downside is he has a roommate. He doesn't really know his roommate, they have only had one conversation the entire time living together and that is 2 years. But Sanemi has a routine before every big fight he has to have sex, it releases his stress and tension. And one night while someone was over that was not pleasing him enough he gets fed up and eventually ask his roommate, Tomioka Giyuu to help him out.