Father-In-Law, Lao Zhu, I'm Here to Save Your Eldest Grandson.

As soon as Xu Wenwu opened his eyes, he was personally dragged to the execution ground by Zhu Biao, the crown prince of the Ming Dynasty. There were cries and howls all around, and Lao Zhu was coldly ordering to kill the founding hero. Seeing that he was the next one, Xu Wenwu suddenly shouted loudly: "Your Highness, the emperor's eldest grandson is not born weak, but someone poisoned him!" Zhu Biao let go in shock, and the blade stopped just half an inch in front of his neck. Xu Wenwu wiped his sweat secretly: It's so dangerous, this Ming Dynasty's son-in-law starts on hell difficulty...