The true form is reflected on the surface of the water. The hot springs are not for beautiful skin, but for the men's and women's baths, where the bathers switch bodies! If you look closely at the noren, you'll see that it says "baths for men to women, and women to men"! You can enjoy the women's bodies, or you can take turns bathing naked together! Women can do it as many times as they want, so it's the best! Men's sex isn't bad either, right? Sex that gets them excited by each other's bodies!