What Kind of Contract Can You Sign Without a System?

First death He, Zhang Xiaowei, a mortal who was despised by the immortal sect, was nailed to a tree by a female disciple's sword because of his arrogant words. Second Death He, Zhang Xiaowei, appeared in the God Realm again and was forced to accept the "getting stronger after being beaten" system. However, at the moment of rejection, he was penetrated through the heart by the same female killer. The third return He, Zhang Xiaowei, broke into the God Realm for the third time with a "bug", his body intact and furious! "Have you had enough fun?!" Gods: "We didn't kill you! Who are you?!"