Synopsis: The Frontier Bathhouse Turns Into a Harem: The Overpowered Effects of a Run-Down Hot Spring Deep in the Mountains Make It Super Popular with Female Adventurers

A Cheat Hot Spring That Heals Female Adventurers, Makes Them Stronger and Leads to Steamy Mixed Baths?!Deep in the mountains, a young man named Rio manages an old, run-down hot spring. Using his mysterious skill, he adjusts the properties of the waters only to discover that what he thought was ordinary is actually cheat-level powerful!News spreads fast, and soon female adventurers of all kinds flock to the spring. But there's a catch the waters don't just heal; they also awaken certain desires