A former dungeon boss, once feared across the land, seeks a peaceful life after centuries of managing minions, traps, and treasure. Now living in a remote town disguised as an ordinary human, he dedicates himself to raising his adopted human daughter, Lila. However, her adventurous spirit and determination to become a hero keep pulling him back into the dangerous world he left behind. To protect her, he secretly uses his dungeon-master skills to manipulate their quests and ensure her safety, all while trying to keep his true identity hidden.