My son has been married but he doesn't work and just plays around instead. Even when I try to find him a job, he quits right away. His wife Yūho-san is such a well-matched, beautiful woman considering her lazy husband. Since I have some assets, I help them out financially with their living expenses. One day, they came over to stay with us. And then, naturally, my son and his wife left me alone with Yūho-san...