Baby Demon King Has Changed

I was the last demon king, the strongest and greatest creature in the demon world. I’m the best. …I mean, until I die after being betrayed and killed by the humans who served me. “When you’re born again, you’ll have to do good things. If you don’t want to live a worse life than a small creature.” To break the curse I received before I die, I must do good deeds! The goal is to regain money, power, and fame, and live a life that takes a lot of benefits. Even if the body that entered at the best was a human kid, the ugly duckling of the family. This genius and cuteness! And there is nothing that can’t be solved with this beauty(?) In order to grow into such a great Demon King, I work ha...