The female protagonist Yu Xin met the male protagonist, "Uncle" Qiu Huilun, through an accidental ride-hailing experience.
This was a designed "hitchhiking" trip. The uncle and the others were actually spies. Their purpose was to get close to and wait for an opportunity to steal one of the most advanced anti-epidemic traditional Chinese medicine drink formulas in the world successfully developed by the Traditional Chinese Medicine Biotechnology R&D Laboratory led by Lu Xiadong.
In fact, this is their second plan to get to know Yu Xin.
The first time was 5 years ago, when Yu Xin accidentally lost his right leg in a traffic accident. In the hospital, the spy Lan Tianlei was also hospitalized. He accidentally learned that Yu Xin's grandfather was Lu Xiadong's master, so he decided to open a breakthrough from Yu Xin. The spy organization replaced Yu Xin with a 3D printed artificial prosthetic leg and placed a listening device inside. They were already talking about getting married, but after Lan Tianlei accidentally exposed his secret to his grandfather, he disappeared for 5 years until the "hitchhiking" incident where the second plan was implemented.
Yu Xin gradually fell into the trap designed by her uncle, and came to work beside Lu Xiadong as scheduled, becoming Lu Xiadong's assistant.
When all of this was following the path designed by the spies, Cheng Yaojin - the "little villain" Yiyi - appeared halfway. She fell in love with Yu Xin. Although Yu Xin rejected her in the end, she still killed her relatives for the sake of love and told the truth that "uncle" Qiu Huilun and her mother were both spies...
Concept: No matter how cunning the fox is, he cannot escape the eyes of the hunter. Justice will prevail.