Overpowered Villain Returnee in the Apocalypse - System is for Losers

The Demon Lord was as strong as a fly. So when I swatted him away after sleeping in on the morning of the fight. The world trembled and the goddess descended. “Please... Please just fucking go back. I don't want to die.” And sent me and the hero back to Earth. Except she had taken away all my powers, and... [Welcome to the Earth’s Apocalypse - Scenario 1 is currently in progress] [Congratulations, you have been chosen by the Strongest Dragon God system, would you like to accept?] HELL. NO. A system is for losers. ……………………………………………………………