Marie, a professional with a job, has developed romantic feelings for her boss, Nakashima Kento. Nakashima Kento is both suave and well-liked. During an after-work event, Marie and Nakashima Kento are alone, and Marie feels a strong connection with him. However, Nakashima Kento begins to behave strangely. Nakashima Kento's kindness wanes, and he even tries to suddenly kiss Marie. Marie begins to feel uncomfortable. Then, Nakashima Kento confesses that he is not Nakashima Kento, but his twin brother Nakashima Yuuto. Nakashima Kento is sick and can't make it to the event. Nakashima Yuuto asks Marie to take care of Nakashima Kento at their place. Marie begins to wonder about Nakashima Yuuto's intentions.