Since joining the company, Tatsumi has always admired department manager Mizukawa, who is also the wife of the director. Mizukawa is an extremely beautiful woman and very competent at work. Due to being too engrossed in admiring the department manager, Tatsumi often makes mistakes and gets scolded. A colleague sitting next to him notices this and advises him to give up, saying that Mizukawa is someone he cannot reach. Despite knowing this, Tatsumi cannot ignore his feelings for her. Because he is too infatuated with the department manager, he fails to complete the documents on time and has no choice but to stay back and work overtime. Coincidentally, Mizukawa forgets her belongings and returns to the office. Seeing Tatsumi diligently working, she invites him for a drink. This is the first time Tatsumi sees Mizukawa's gentle side, and he is even more attracted to her. Mizukawa, on the other hand, inexplicably feels extremely relieved when she is with Tatsumi, being able to easily confide in him. The distance between them gradually narrows, and Mizukawa takes the initiative to kiss Tatsumi. In a moment of embarrassment, Mizukawa takes Tatsumi to the hotel she often visits. This is her secret place to forget all worries. But today, she wants to be with Tatsumi here, to blend together, to share her emotions with him. After that night, both realize each other's feelings. The next day, Mizukawa assigns Tatsumi to redo the documents so he has to work overtime. And that night, they continuously make love at the office. Unfortunately, this scene is recorded by Tatsumi's colleague and spreads throughout the company. Mizukawa's husband wants to transfer her to the branch in Osaka and fire Tatsumi to calm things down. But Mizukawa makes her decision. She decides to leave everything behind, divorce her husband, and follow Tatsumi. Despite not knowing what the future holds, living with Tatsumi in a cramped room, Mizukawa feels incredibly happy, something that her previous wealthy life could not provide her with...