Shiro Miura's (Toma Ikuta) family runs a public bath called "Marukane Onsen", but he does not intend to inherit the family business. He leaves home to venture out, but returns home because things are not going well. At this time, the public bath has been continued by his younger brother Goro Miura (Gaku Hamada), who has inherited his father's ambition. Shiro's return home makes the two brothers incompatible. And this public bath also has a girl named Izumi Akiyama (Kanna Hashimoto) working there. How will these three get along? How can the spirit of "Onsen Road" be spread?