But that leaves being a maou totally out of the question. It's like his background is that of a king of demons just because it looks oh so cool in the series description and because it would make a clumsy heroine pay any attention to him. But that's it. It's totally wasted on flipping hamburgers at a minor fast food restaurant. It also makes no sense how somebody like that could have become a maou in their home world. You'd think demons would be such backstabbing bastards that a doofus like that would have found himself killed twice over in no time by his own men.
I hope things will change in the future eps. It's not like I'd have decided to drop this already. I always like a story where the hero and the demon lord become a couple, although it would help if the demon lord was a bit more like a demon lord to spice things up.
It didn't seem to me like he was expecting her to follow them to the human world in the first place, so playing low shouldn't have been an issue. Besides, a maou should be bold anyway. I mean, he even is at the restaurant, as much as one can be.