How many generations of the Yu family and how much energy did it take to build a Yu Family Corner? Ning Cheng's words obviously meant to completely blow away the Yu Family's Corner built by the Yu family, just like the water prison. With the Yu family's horn gone, the strength of the Yu family has been reduced by half. Even if Ning Cheng doesn't kill a member of the Yu family, the Yu family is no longer qualified to stay in the Zhongtian Star Continent....