C140 Amazing speculation
Hua Yu was also under Hua Cheng's control when he needed help, and the authority he had over the entire place fell under Hua Cheng's jurisdiction.
When Hua Cheng came into contact with Hua Yu, he realized that Hua Yu was probably not an ordinary person.
After finishing the story, Hua Cheng heaved a sigh of relief. All these years, this was the first time he told his own matters to an outsider