The Ishikawa family seemed to have built a happy family. Yuna, her stay-at-home mom, had an affair with her current husband's boss before her marriage. Yuna, who couldn't forget her feelings secretly, was suddenly reunited with her boss, and her flame of love flared up. Currently, the two of them have their own families, and although they know that they are not good, they ask each other as their instincts go, and have repeated sexual intercourse many times.
