Watashi no Ookami-san is to be perfectly honest, not that objectively good. I've seen worse art in manga, but it's still not very good. The story is very simple, and the characters are rather one dimensional. Your enjoyment of it will come purely if you are amused by the idea of a slacker demon lord who's obsessed with how adorable the level 0 hero character is who's cutely and ineffectually trying to do hero stuff like defeat him, save girls from demons, and so forth. It's the kind of moe certain people will like a lot, and those that don't will surely prefer not toread as to be perfectly honest there's really not much else to be had. I fully admit I enjoy cute fluff and ridiculous over the top concepts like this, so my personal enjoyment of this manga is high. The one disappointment is the manga starts with the demon lord already into the hero, and I really am curious how this silly situation happened in the first place.