Yuki-chan's mom attends the same kindergarten as her son Ryusei, and starting this spring, they'll both go to the same public elementary school. Outwardly, she appears serious and responsible, promptly attending parent-teacher meetings and school events. But in reality, from midday onward—sometimes even right after the child's entrance ceremony—she's summoned by me, Ryusei's dad, transforming into nothing more than a "pantyhose-clad milf cumdump," drooling with vulgar pleasure as she moans in ecstasy.