When the lord of demons and his horde waged war against the humans in their realm, a hero vanquished their army. Cornered, the Devil fled through an interdimensional portal to Earth. He vows to one day reign again, but until then... he needs a job!

When Emilia the hero finally tracks down the ruler of demons here on Earth, he's not exactly what she was expecting. Which may or may not make her a little crazy.

Something supernatural seems to be going on with Chiho. Meanwhile, it's possible Maou doesn't really understand the concept of a "date"... but it's not long before everyone has much bigger problems on their hands.

In the aftermath of the cave-in, Emi sees a side of Maou that doesn't jibe with the demonic king she knew in Ente Isla. Meanwhile, everyone sees a side of the landlady that nobody could have expected...

Lucifer is wrecking the neighborhood in a big way, and he's brought along some unexpected friends! To save both themselves and their new Earthly home, can Emi, Maou, and Ashiya do the impossible and... work together?!

Back in Ente Isla, the other high priests find out about Olba's betrayal. Meanwhile, Lucifer's moved into the Devil's Castle and gotten Maou and Ashiya into school ghost stories.

Maou and company find that a young lady named Suzuno has moved in next door. She is quick to make friends and starts helping them out, which causes Emi to wonder what her motives are.

Emi and Suzuno have some truly epic miscommunications, but when they finally get those straightened out, they're even less on the same page than before. Meanwhile, Maou's got bigger (?) problems: there's a new fast-food restaurant in town!

Insisting that Emi and Suzuno need an impartial third party to resolve their dispute, Rika goes with them to meet Maou. Meanwhile, Maou tries to handle the loss of business caused by the opening of a new restaurant.

It's a busy day at the local amusement park, with crowded restaurants, animals on the loose, scary ghosts, and a much-needed swimwear intervention.

The stranger Suzuno met at the train station has her reconsidering her position on the Devil. Emi, however, is unwavering.

The archangel Sariel is willing to torture people to get what he wants, and he's confident that no one can stop him--but he didn't realize quite how seriously Maou takes his responsibilities.

Ashiya has something he needs to talk to his master about in private. Are the demons going back to Ente Isla?!