Kiritani Matsuri-chan, a beautiful girl with a natural marshmallow H cup, challenges the SOD signboard series, one men's bath towel HARD. Matsuri-chan, who had been told about the fake hot spring location, receives a real plan explanation from the director and goes into the men's bath where there are general bathers, although he is confused. There is no need for customers to leave a beautiful girl like Matsuri-chan ...