I Have Become The Demonic Ancestor

I Have Become The Demonic Ancestor
A young teenager accidentally takes over the body of the world’s most evil demonic Dao grandmaster. However, he loses his powers due to millennial limitations. Faced with the conflict and division within his sect, betrayal from everyone, and the siege of the orthodox sects, to turn the tide, he must complete the missions assigned by the Absolute domain system, and the tasks are… all to perform good deeds and be a good person!?