Ah, this show, I Couldn't Become a Hero, So I Reluctantly Decided to Get a Job. I wanted to like it but i dropped it after a hand full of episodes. I have to agree that really, only the Devil girl, Fino, turns out to be good. The rest just, bleh. Maybe i've just seen to many of these style of shows, the weak MC and the much better supporting cast.
It had a good idea but they didn't mine it well.