Kimika learns that her son is at risk of expulsion after being drawn into a delinquent gang, so she uses her seductive beauty and big tits to lure a rookie teacher, securing a promise for her son's promotion. Her actions catch the attention of Ikeda, the gang's leader, who later visits her and boldly demands, "If you want us to cut ties, do something dirty with me." Just then, her son unexpectedly returns home, forcing the two to hide in panic. But Ikeda smirks mischievously, as if plotting something, and quietly leads her toward her son's room. This encounter spirals into a critical moment that will determine the fate of her son's future.