[Machine Translation] The condition is that they keep the building and the employees and continue the business. The sisters inherit the estate of their uncle, whom they did not even know existed, and together with two mysterious employees, they run a traditional public bathhouse. One day, one of their regular customers mentions a strange riddle that they have solved, and this leads to a series of "mysteries" that plague the town. At the same time, the sisters are surrounded by a series of mysterious events... This is a warm, everyday mystery that loosens the stiffness in the heart and body.