Jun's sexual frustration had reached its limit. Since her divorce, she hadn't had sex with her favorite dick for a long time, and recently, whenever her daughter's boyfriend comes to visit, she hears the sounds of their lovemaking. Jun is torn between her motherly Kokoro and her feminine instincts, but one day, she peeks at her daughter having sex and masturbates, and something inside her breaks. When her daughter takes her eyes off her, Jun approaches her daughter's boyfriend with a seductive smile... A theater of betrayal and plunder over a single dick begins.