It Starts With a Kingpin Account

The sudden crisis brought the earth directly into the OL era, and all mankind was reduced to the palm of unknown forces. Everyone became a first-class trumpet. In the cruel era of the weak and the strong, the high school student Ye Hao could only rise to three. Level, when he was about to die, accidentally opened the king's account upgrade system, can Ye Hao become the strongest king? (Source: MU)