I Dominate the System

Wu Hao was originally an ordinary high school student, but an accident occurred at home during the college entrance examination. His mother died, and his father, an employee, was framed and sent to prison. Unable to bear the blow, he jumped from a high building. He thought he was going to die, but found that he was still alive and had become a world-wide trading system. From then on, it became his duty to drain the host.