Ninkyo Onsen Ryokan: Yumi and her boyfriend Goro run a long-established inn in a deserted hot spring resort in place of their useless father, who is infatuated with his seductive mistress, Miyako. As their beloved inn faces the threat of land speculation by the yakuza, a mysterious and skilled drifter, Kazama, appears before them. Yumi is seduced by his thrilling and wild charm, but the yakuza, unconcerned with the consequences, attack in an attempt to forcibly take over the inn! Will Yumi and her friends be able to bring love and peace back to the hot spring resort?