Ichirō's friend, Hisashi, falls for Ichirō's mother, Kana, and bravely confesses his feelings. At first, she dismisses him as joking, but after learning that Hisashi is serious, and realizing Kana is now a single woman after losing her husband in a car accident, she decides to date him, putting aside her role as a mother. Their relationship progresses to a sexual one, and Kana becomes obsessed with Hisashi's young cock! Reminded of her former kinky self, she transforms into a masochistic nymphomaniac, moaning with lusty cries of "I love young cocks!" and surrendering to her desires. And then...
