Spirit Card Era: I'm Really Not the Demon King

In the Lingka Era, the human race declined and thousands of races rose up. The demon king blocked the door at the beginning. In order to save his life, he had no choice but to pretend to be the demon king. I never thought that once I put on the devil's hat, I couldn't take it off. Seeing that the human race has united with the major races to raise a large army, they want to conquer them and then quickly. In a rage, he tore off his disguise and wiped out the allied forces of all races with one palm. Stop pretending, I am the devil.