Ichiro’s friend, Himori, falls in love with Ichiro’s mother, Kana, and musters up the courage to confess his feelings. At first, Kana doesn’t take him seriously and thinks it’s a joke, but after losing her husband in a car accident and being left alone, she realizes that Himori is serious. Despite being his mother, she decides to enter into a relationship with him. Eventually, the two become intimate and Kana becomes addicted to Himori’s young penis. She remembers her past as a pervert and transforms into a masochistic woman, moaning “I love young penises!” And writhing in pleasure. And then…