The story revolves around  Yukami Makoto, a high school boy whose hobby is visiting hot springs. His 100th hot spring visit is at Miyama-kan, an inn run by four  poster girls:  Tokura,  Akino,  Tsutsuji and  Mitomo. There, Makoto spies  Yuri, a goddess of the hot springs, and unexpectedly usurps her powers. Makoto ends up working at the inn.