Netorareta Bakunyuu Tsuma-tachi

寝取られた爆乳妻たち

Masaru, the nephew of Hitomi's husband, comes to live with them after his parents go away. Hitomi and her husband were in an arranged marriage, and things are not going very well with them. Hitomi wants to spend time with her husband, whose job takes him far away. Masaru decides to comfort Hitomi, and then things happen.