Ryōhei Hachiya works as a businessman alongside colleagues Rena Yukuhashi and Rie Sekiguchi. He handles his professional duties smoothly but exhibits a scatterbrained nature in his personal life. His communication relies on intuition and smooth talk, which sometimes leads to unintended outcomes. He maintains a permissive view on casual relationships, explicitly accepting one-night stands. On holidays, he pursues outdoor activities.

The core narrative begins when Ryōhei encounters Rena Yukuhashi outside the office. Rena, exceptionally plain at work, undergoes a striking transformation in casual attire. Startled by her changed appearance, a flustered Ryōhei makes an inadvertent remark that sounds like an invitation for intimacy. This exchange occurs directly in front of a love hotel, escalating the misunderstanding and initiating their subsequent dynamic.