At an ordinary public bathhouse's men's section, a stunning woman named Sara comes to bathe. When she walks off to grab a towel, all the male customers grow restless, their eyes following her every move—only to discover an unexpected cock among them!? The male patrons feel an unusual excitement at the sight, and one man in particular begins visiting the bathhouse daily, gradually becoming obsessed with her. Meanwhile, Sara herself is drawn to him, increasingly craving his cock. Hidden temptations within everyday scenes deepen the relationship between the two.