After two years of marriage, their relationship was not so bad, but Sumire felt lonely because of her husband's indifference. When I was worried about how to somehow turn the situation around, my father-in-law, Kazuo, gave me advice. However, her husband remained indifferent no matter how he invited her, and Kazuo, on the other hand, could not take his eyes off her. And Kazuo, who could not bear to encourage Sumire, was disappointed... From that day on, the two continued their relationship while stealing her husband's eyes. Sumire was looking for her father-in-law's son, not her husband.