Demon: Infinitely Getting Weaker Is Okay

[Western fantasy + multiple female protagonists + reverse upgrade + multi-race + seven deadly sin talents] Li Ming traveled to a demon, but he didn't expect that he had the talent to become stronger by absorbing magic cores. He became the weakest demon and became the strongest in the world! Strangely enough, when Li Ming discovered that he could be unconditionally controlled by his creator, he knew that things were definitely not that simple. He had to keep getting stronger and resist the fate of being controlled. But what Li Ming didn't know was that due to his time travel, the originally reset world line had deviated. Stories belonging to other demons had been replaced by him, and they were even done ten thousand times better than him. The witches who reset the world were confused. But as long as you can kill the Demon King, that's fine. No, how can you become the Demon King? Elf Queen: Lord Black Demon, please save our world, including this concubine. Saint of the Holy Light Church: No, you are a devil and I am a saint. There will be no results between us. Angel Queen: Hum, damn devil, your thoughts are so dirty, the Holy Light will give you divine punishment! Li Ming: Don't be afraid, after all, I am not a devil. PS: The name is useless, don't be misled by the name, just because of the male protagonist's skills, but this is his skill to dominate the world.