Became a Big Devil at the Beginning

Tu Haowen traveled through time, but as soon as the game started, the demon king of the undead clamored for him to be his successor. Okay, okay, seeing that you are almost dead, I reluctantly agree to it. By the way, aren't you an undead? Why did you die so casually? I'll let you watch in heaven, how I unify the demon world and dominate this other world. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.