Mao, with her big ass, bouncy boobs, and most of all, her cute smile, is secretly popular with her mommy friends' husbands. Taking advantage of her abundant maternal instincts, she opens a home-based brothel, "Adult Kindergarten"! Husbands who are in a rut in their marriage say it's "easy to come and easy to get off," and "there's a lot to learn that you can't get with a wife!" Mao-sensei is busy today as she pampers men, plays with them, praises them, and even gets a little scolded. She satisfies their Kokoro with her erotic body! "Men are just like kids forever."