Instilling terror in mortals, the Demon Lord Satan launches a conquest of the land of Ente Isla with his massive demon armies. Yet, as he pursues this brutal campaign to seize the continent, his plans are thwarted by the hero Emilia. This forces Satan to execute a hasty retreat through a dimensional portal, which deposits him in the human world. Accompanied by his loyal general Alsiel, the demon finds himself stranded in modern-day Tokyo. He vows to return and finish his subjugation of Ente Isla—provided they can find a way back. Deprived of power in a world devoid of magic, Satan adopts the human identity of Sadao Maou and takes a job at MgRonald's, a local fast-food chain, to make ends meet. He soon concludes that his original goal of conquering Ente Isla is insufficient, as he becomes determined to ascend the corporate ladder and rule Earth, one satisfied customer at a time. Whether dealing with part-time employment, household chores, or simply trying to pay rent on time, Hataraku Maou-sama! offers a comedic perspective on the most ordinary aspects of daily life, viewed through the eyes of a hapless demon lord.