After divorcing her first husband, Hideko married a customer she met while working part-time at an izakaya. He aggressively pursued her and they married four years ago. However, she soon realized her new husband was the type to neglect her after "catching the fish," leaving her increasingly disappointed. Then one day, she found a business card from a mature women's bar in her husband's jacket pocket, sending her into shock and rage. Having fallen victim to infidelity for the second time in her life, Hideko made a firm decision—to get revenge by having an affair of her own—and chose to participate in this film as a result!