The Origin of the Demon King

One day, the devil was born from nothingness, traveling through various worlds wreaking havoc and causing the collapse of many worlds. In order to defeat the demons, humans accepted the power of possibility and became magical girls, and used magic to successfully eliminate the demons one by one. As a result, the existence of the demons became precarious. At this time, the demons found a hidden world, hid in it and got a chance to breathe. Hundreds of years have passed since then, and the newly appointed lusty demon king Avalin is trying to take back the world that once belonged to demons for the sake of the demon world. What fate awaits him? The author decided to rewrite this work after thinking about it. I would like to thank the readers so far.