Harumi, who graduated from a first-class university and has experience studying abroad, was a tutor for her nephew, Yuichi. I thought that Yuichi, who has no experience with women, would never be conscious of him as a man. One day, Harumi is abruptly said goodbye to the liquor store she is having an affair with. Teasing Yuichi to clear up his frustrated mood, he takes his virginity as it is. Harumi, who was very satisfied with sex with Yuichi who was innocent and fresh, invites Yuichi who came to the house again the next day.