--- What is the working environment of a dungeon? --- The thief girl, Kurei, who was supposed to explore the dungeon, ended up working instead. Together with the wizard Bell, who manages the "Antomurugu Dungeon," she spends her days dedicated to dungeon operations. From creating the contents of treasure chests to conducting monster job interviews and managing living conditions, this is packed with knowledge about the hidden side of the labyrinth that she never wanted to know!