Due to her husband's hospitalization, Natsuki is forced to live alone for a while. Worried about her, her daughter and son-in-law decide to move in with her. However, the newlywed couple is already experiencing serious marital discord. Their intimate life has dwindled, leaving the son-in-law feeling lonely and the daughter exhausted from caring for her parents. This tension eventually erupts into a fierce argument. As Natsuki gently comforts her heartbroken son-in-law, his pent-up sexual desire unexpectedly turns toward her. Faced with this sudden development, how will Natsuki respond?