Due to family circumstances, a student and his family moved into an apartment where he developed a sexual attraction to his married neighbor Hitomi Rinmuro. The student couldn't help but jerk off thinking of her countless times and started collecting porn magazines about housewives. The day after he saw Hitomi undress behind the curtains, Hitomi told him that she found out what he was doing and unexpectedly proposed to be sex friends.

Notes:
A live-action AV adaptation (NIMA-058) was released on Jun 17th, 2025.