A new series in which girls who wore bloomers during gym class confess the naughty acts they did back then. The first episode features Miu-chan, 28, who has a divine figure with a waist of 56cm and hips of 98cm. She wore bloomers during gym class until her first year of junior high school, but was shocked when they switched to shorts after that. She becomes immersed in bloomer play as she talks about the naughty acts she secretly did back then.