A group of female college students from sports clubs who met near a training camp facility on the shores of Lake Yamanaka take their first bath in the men's bath and take on an erotic mission challenge! A novice young lady with a healthy body who devotes herself to club activities every day is surrounded by strangers and embarrassed as she takes on a penis ring challenge! This summer's training camp not only helped them improve their sports skills, but also taught them important lessons about society.