When his classmates are whisked away as heroes to a new realm, Satoshi Shinta finds himself excluded, forced into the role of a dungeon master and branded as humanity's foe. In this new world, survival hinges on a crucial decision: to thrive and carve out a comfortable existence, he must resort to sinister tactics to crush his foes and fortify his dungeon. As (male) Satoshi Shinta embarks on his wicked journey of dungeon management, the stage is set for a tale of treachery and power plays.