Delivery boy Lin Wanqi encounters Mu Qing who collapses while delivering food. She pleads for help, but she discovers that her husband Lu Zhe and his friend Song Yu are involved in an ulterior affair. Unexpectedly, this incident involved Lu and Song's medical device commercial fraud. Lin Wanqi relied on her wit and connections to help Mu Qing collect evidence. Faced with Song Yu's threat of retaliation and Song's mother's online slander, Lin Wanqi responded calmly, teaming up with her food delivery colleagues, Mu Qing and the legal team to openly confront each other in an abandoned factory and reveal the entire truth. In the end, Lu Zhe and Song Yu were arrested for crimes, Mu Qing successfully divorced and regained her property, and Lin Wanqi also gained friendship and respect, and continued to write the story of a deliveryman in the city.
