Clay has trained all her life to become the elite of the Thieves Guild. But since her father disappeared three years ago, she has put all her skills into searching for him in a dungeon filled with monsters and dangers. As she finally reaches depths never before equaled, she meets the manager of the dungeon... who invites her to join the staff! Arming traps, filling chests... through this new job, Clay will learn everything behind the scenes of a dungeon!