It's time to rise up! When you're reincarnated into a fantasy world as the demon king, it's your duty to lead the demons and conquer the human world! Defend your dungeons from any adventurers who dare enter and attain victory by slaughtering your enemies!
After receiving a letter from her brother about strange events happening in his town, Tanya, along with her apprentice Riru, travel to Cain village to investigate.
