Hataraku Maou-sama!!

The Devil and the Hero may be powerful enemies back home in Ente Isla, but in today's Tokyo Sadao Maou and Emi Yusa are working hard as ever in their human jobs. They spend their days settling into life in Japan and navigating the stormy economic seas along with the Devil's castle crew and the lovestruck high-school girl Chiho.

But one day a mysterious young girl appears and plunges the Devil's castle into chaos. Incredibly, there's child-rearing to think about now, not to mention the endless stream of visitors from Ente Isla and the fact that, as always, they can't make rent without working.

(Source: Crunchyroll)