I Resurrect Twice a Day, and I Am the Grandmaster of Demonic Cultivation

[Villainous male lead + lone wolf + ruthless killer + no female lead + do not read if you like saintly characters] Jun Ya is reborn into the cultivation world on nightmare difficulty from the start, only to discover that he gets two chances to resurrect each day. To grow stronger as quickly as possible, he creates the demonic path, which has never existed in this world before, and becomes a demon himself. He also creates a devouring cultivation technique to plunder every resource under heaven. Protagonist’s luck? Sect treasures? Secret realm inheritances? Hand them over! They’re all mine! Tens of thousands of years later, all the demons bow in worship: “We welcome the Demon Ancestor!”