Talented model, Mitsu Ashiba, participates in an onsen filming trip to expand her TV career. The producer in charge is Sagawa, a reckless man clinging to Showa-era sensibilities. Mitsu loathes him. Meanwhile, Mitsu is 'secretly dating' a young manager. This relationship is known only to a select few within the company. However, Sagawa slowly begins to notice the subtle distance between them. On the day of filming, Mitsu arrives at the ryokan and is shocked. What awaits her is sharing a room with Sagawa. Before she can protest, the atmosphere on set overwhelms her manager. Feeling uneasy, she tricks herself into believing that nothing will happen. That night, Sagawa corners Mitsu. Despite having no proof, he drops a critical line: 'You two are dating, aren't you?' Her position in the industry is jeopardized if this secret gets out... Unable to resist, Mitsu is held down by the man she hates, and eventually, her hidden D-M side emerges....