“You have been reincarnated as the Dungeon Master of this place. Lure many adventurers with desire, and create a dungeon that can extract their blood, magic, and lives through exploration and battles, Master.” One day, a man who was on the verge of death in a hospital hears a mysterious voice. The voice tells him to operate a dungeon as its Dungeon Master. Faced with this unusually specific voice, the man begins to think about the management of the dungeon while dying of his illness. And now, as the voice predicted, the man has truly been reincarnated as a Dungeon Master. He declares to the Dungeon Core, the source of the voice: “Alright... I will create a hot spring dungeon.” Thus, my dungeon management begins.