Mother Aoi entertains Kobashi with her son's friend Kawada who came to stay at the farewell party for his son studying abroad. At midnight, Kobashi felt a sign of people, and when he looked into the bedroom, Aoi and Kawada were glaring at each other. Aoi and her friends are intertwined with each other as they threaten to tell their interrupting son. At first, Aoi refused, but the desire of the woman who had forgotten ignited and drowned in a young body.