The Strongest Demon King Undercover

Yang Yao traveled to a world ruled by gods and demons. He had been very unsatisfactory for sixteen years in a row and even owed a huge debt. In order to repay the debt, he had to accept an epic myth-level difficult task: go to the demon world to impersonate the two demon kings and destroy all the forces of the two demon kings! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.