Entering a new series! The adventure of the strongest demon lord is far from over. At the lowest floor of the dungeon, the Demon Lord came face to face with a presence that appears to be the creator of this world. His next destination is the demon territory where there's an ongoing rivalry between devils. A new, incredibly energetic and cheerful high school girl has joined the gang. Once again, our character's bustling personalities and their idiosyncrasies will clash with each other. (Source: Futabasha, translated)