Maho Fujiwara, a single mother, has been feeling lonely lately because her son, Takuma, has grown up so much after his rebellious phase. She proposes to him, "Let's take a bath together again for the first time in a long time." However, Takuma is shocked when he sees his mother's body, which he hasn't seen for a long time. Her big breasts that are plump and her lewd hips that he can't believe gave birth to him... Takuma, who has supposedly grown up into an adult, begins to seek out his mother's body as if he were regressing to her... # Class President P