Yu Jingrong suggested Li Chengyun find a way to trap Su Xin in Q City, such as encountering passport issues or something similar, which would prevent her from leaving temporarily.
She trapped Su Xin in Q City, not to harm her, but to get an opportunity to confront Cao Mengfan, Meng Linlin, and Su Xin at a social gathering during a collaborative project with the Cao family. She would use this occasion to deceive them into revealing their vulnerabilities, which could confirm whether they had anything to do with her father's death.
However, before she could come up with a plan to expose the three, a significant incident occurred at home. Although it didn't disrupt her scheme, it consumed her thought and attention for a time.
Huo Shufen was knocked down by a man and fell to the ground while returning from the market.