Demon Lord Cub, I Have the Final Say in the End of the World

After his ascension failed, Demon Lord Mubai accidentally traveled to a modern world and became a little milk baby? This is not the worst part. Not long after he was born, he encountered the fusion of worlds. Faced with bloodthirsty zombies, mutated animals and plants, extreme weather, and ghosts who secretly wanted a piece of the pie, Mubai said: Get lost, I protect this world!