Su Xuening works at a business hotel to support her husband, whose income is meager, but her husband doesn't cherish her at all and even tells her to quit her job at every turn. What's more infuriating is that at her workplace there's also a male subordinate who keeps making the same mistakes. The only thing that brings her comfort is a playboy she met on a dating app who listens to her complaints. Before they met, she had always assumed he was a man somewhat older than her. She originally wanted to thank him and have a meal with him, but who would have thought what showed up was a girl... When she found out the other person was a girl, that "misjudgment born from prejudice" has become the most unresolvable flirtatious leverage between the two. Every time she recalls how she used to address the other person with such polite, even slightly ingratiating "big brother" style titles, she wishes she could find a hole to crawl into.