After being exiled from her witch clan due to a minor incident (or so she claims), Roselyn opens a public bathhouse—specifically, a men’s bathhouse—in the capital of the Empire.

Hoping to both admire handsome men and put her potion-making skills to good use, Roselyn throws herself into running the bathhouse.

One day, suspicious of the mysterious effects of the bath, the Magic Division Commander Michael Winterman pays her a visit.

After a fateful accident leads to Roselyn spending a night with Michael, he begins visiting her again and again. Just as things start heating up, Jibril from the desert shows up, looking for Roselyn.

When Michael and Jibril meet at the bathhouse, tension flares. The two men seem to be in some kind of rivalry over Roselyn… but what exactly is going on?