Yuki works as a receptionist at her company. Due to work-related pressure, she ended up having sex with her boss, a man she used to dislike. The moment he kissed her, her spine froze and her body trembled. She was teary-eyed leading up to penetration, and when he entered her, the shock nearly made her lose consciousness. Yet gradually, her body began to feel pleasure. She resisted the fact that she was enjoying sex with a man she hated, but in the end, she still came. Completely dominated by her boss, she was overwhelmed by a sense of defeat. At first, she convinced herself that cooperating would benefit her career, but in reality, she was turning into his mistress. She later found out a female coworker had also slept with the boss, despite finding him physically repulsive. Recently, her body has started getting used to it, and she's even begun to feel arousal, no longer badmouthing him like she used to—she once freely insulted him while drinking with colleagues. Though she insists she doesn't see herself as a mistress, at 27 years old, she allowed herself to be taken by him, driven by the desire not to fall behind her peers or younger coworkers. At the time, she was going through emotional instability, losing her footing at work, making more mistakes, and had just broken up with her boyfriend. Looking back now, she feels it happened too quickly and was a mistake. But since she's come this far in the relationship with her boss, ending it now would make all her suffering up to this point meaningless. She has decided to continue enduring this situation. What's really driving her decision—money, or pride?