The Demon Lord is the resurrected Majin, Rim’s twin sister. She explains the Calonian civilisation created dungeons and Guardians like Rim to manage the flow of magic throughout the planet, but when Rim met Kinji and abandoned her dungeon Raiza’ha was able mine all the way to the bottom and use the advanced technology of the Calonian city beneath it to take over the world. Majin temporarily defeated Raiza’ha and became Demon Lord, but Raiza’ha has returned, having turned their corporate slaves into robots to defeat Majin and turn the planet into a dystopia empty of biological life...