Yurika is a nurse and single mother raising her son Daichi on her own. Their close-knit bond has seen them through life's challenges, maintaining a peaceful and stable household. But that tranquility shatters when Yurika introduces Daichi to her new boyfriend. Overcome with jealousy, Daichi develops an obsessive fixation on his mother. As she seeks happiness as a woman, he declares, "I'll make you happy instead," and gives in to his uncontrollable desires. He violates her while she sleeps in her nurse uniform, using his throbbing cock to make her squirt repeatedly. Eventually, Yurika loses all reason, succumbing completely to the taboo relationship with her son.