Ayumi, a wife who is a little dissatisfied with her husband for a long time. Recently, she has nothing to look forward to other than chatting with her brother-in-law, Shunsuke. However, Shunsuke has failed at gambling and is covered in debt, and has approached with the aim of demeaning Ayumi's frustration and asking for money. And just before her 10th wedding anniversary when her husband is away. Ayumi is overwhelmed by Shunsuke's aggressive confession. Ayumi is tormented by her guilt, but Shunsuke takes advantage of it and is not satisfied with just toying with her body...
