Ayako, who was once the secretary of the third-generation young president and now lives as his wife, has been struggling with infertility for years. Her cohabiting father-in-law and second-generation president, Shigeru, insists that his son divorce Ayako and remarry another woman because he desperately wants to see a grandchild. However, his son refuses and tells his father that he strongly wishes to continue his married life with Ayako. Shigeru's malicious mistreatment of his daughter-in-law, Ayako, is about to begin.
