"Please, Aoi, it'll definitely feel good." Friends, studies, girlfriend... Everything is going smoothly for Akira, but all he wants to do is have anal sex. Unable to confide in anyone, he is oppressed every day, when Aoi, a plain and lonely girl in his class, confesses her love to him. Naturally, he tries to refuse, but he can't help but feel bad, thinking that if she's someone outside of the community, he won't get caught no matter what he does. He talks her into it, coaxes her, and makes her talk... her anus is being tormented...