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.

Saki, an aggressive blond girl, and Koharu, a timid bobbed girl with huge breasts, are two schoolgirls who come to hang out in the room of their part-time job buddies at the same coffee shop. She is curious about the body of the opposite sex, and seduces her hero and the two start having sex in front of Koharu's eyes. From that day on, a strange relationship begins in which Koharu, who is timid and can't say she wants to have sex, stares at the two of them having sex.

Episode 1-2 - Otonari no Hitozuma Hen 
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. 
 
Episode 3-5 - Beit Saki no JK Hen 
Saki, an aggressive blond girl, and Koharu, a timid bobbed girl with huge breasts, are two schoolgirls who come to hang out in the room of their part-time job buddies at the same coffee shop. She is curious about the body of the opposite sex, and seduces her hero and the two start having sex in front of Koharu's eyes. From that day on, a strange relationship begins in which Koharu, who is timid and can't say she wants to have sex, stares at the two of them having sex. 
 
Episode 6 - Anzangata Oshiri no Hitozuma Hen 
A virgin student who started living alone plucks up some courage and hits on a married woman who always passes by and to his suprise.. he actually succeeds in bringing her home?! However, he couldn't get himself to push down the woman and was fidgeting, so the married woman took matters into her own hands...

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