We pick up female college students under the pretense of getting in shape! We invite them to a naughty game! They have a hip-swinging contest with their best friend while inserting a dildo for the first time and wearing clothes they've never shown to their boyfriend! It's a hybrid naughty game that combines shame and pleasure! The first pair is a pair of Kokoro gal college girls! They have a competitive pussy showdown! The second pair is a showdown between a cute college girl who was the runner-up in Miss Campus and a reader model gal college girl! The third pair is a vaginal pressure showdown between athletic girls, a pair of neat and tidy college girls who are the same age and are good friends in the same club!