While his wife was pregnant and returned to her parents' house, Kazuya struggled with unfamiliar housework. However, his efforts are in vain and the house is in utter mess. At that time, she rushed when her sister-in-law, Yuri, helped her with her housework. Kazuya is bewildered by the sudden visit, but happy. However, Yuri's real purpose was to relieve her frustration that had accumulated in her pool with her sister's husband. Unaware of such a thing, Kazuya takes a bath completely relieved. Yuri, who has a mysterious smile on her face, shoves her back and she comes in...
