Introduction: Mubai, a 20-year-old unemployed young man, is just an ordinary person who is busy in Nanjing, but can not find the future direction. But one day, the mysterious system came, and Mubai became a billionaire farmer. But nobody knew that the farm was just a tool for him to hide. His duty was to be a virtual hero. Mubai just walks silently on the internet. He never reveals his identity. He is only a virtual hero who exists on the internet...