Wouldn't this be something you do with a girlfriend? Sakaguchi, who is ordinary and easily influenced, spends every day with his talented roommate, Takato, a handsome man who is also a great cook. They have a physical relationship that began after watching an adult video together, and Takato's sexual desires keep increasing each day. They now take baths together and engage in passionate kissing like a couple. However, Takato has been going to mixers lately and appears to have found himself a girlfriend, leaving Sakaguchi to wonder about his true intentions.