At the wedding, her brother-in-law and the husband of 『ののか』 hit it off and started coming to the house to drink alcohol. That day too, as they drank and chatted, her brother-in-law enjoyed looking at her big ass. In this situation, when he found out that the two were sexless and she was sexually frustrated, her brother-in-law asked for a favor under the pretext of work research, using it as an excuse to perform lewd acts, and repeatedly sought relations. Thinking 'No,' but sexually frustrated, she gradually became attracted to her brother-in-law and started to seek him out herself…
