Feng Yu understood that cutting grass does not root out the spring breeze, so someone set fire to the innkeeper Wu's house in the middle of the night. Fortunately, Lei Mingji sent someone to guard in the dark early and saved the wife and two daughters of the innkeeper Wu. The next morning, they sent people out of the capital, placed them in a small county, and gave them their new identities.
Shopkeeper Wu knew that Feng Yu was ruthless and would probably catch Chu Ying, so he copied a copy of the evidence he found and hid it. Only he and his wife know where it is hidden. After the Wu family mother and daughter confirm their safety, they tell Yang Yidong where the evidence is hidden