Shinmura, pressured by his mistress Michiko, wanted to divorce his wife Toyoko. He immediately hired Tanaka and Saito, who specialize in breaking up marriages. The two men punctured Toyoko's car tire at a pachinko parlor, and Saito approached her while she was in distress. Toyoko was completely smitten with Saito, who introduced himself as a businessman. She proposed to him, and happily agreed to Shinmura's divorce request…

Makoto and Yayoi had been dating since their student days, but Makoto disappeared after graduating from university. Makoto's older brother, Sei, relayed his brother's unilateral breakup message to Yayoi, and then, wanting to take responsibility for his brother's actions, proposed to her. The two got married. Three years later, Makoto suddenly returned home. In reality, the reason they broke up was a scheme orchestrated by Sei, who was jealous of Makoto's success…

Saiko, a bisexual college student, was in love with Satomi, her father's mistress who had looked after her since childhood. Around this time, her parents began discussing divorce, and her father agreed to his wife's request, resulting in the divorce being finalized. Saiko was shocked, but secretly rejoiced at the prospect of living with Satomi. However, when Satomi and Koji showed no intention of marrying, Saiko grew increasingly frustrated…