I've heard that the anime followed the manga fairly well, they probably missed some side stories due to time constraints, probably more in the www.working!! as it only had 1 season to cover 6 volumes while working!! got 3 seasons to cover 13.

Since Kadokawa is a viable target now and Sam mentioned not having licensed anything from Dengeki Bunko yet on Curious Cat, I figured I'd give this a bump.

Its from the same author fo Gamers! so you got my VOTE!! :D but seriously, I just yesterday finished both seasons of anime and I can say it is actually pretty good that i didn´t expected at all :D and the LN was much better I say :D

@drone205 Indeed, it is interesting. And a complete series makes me even more interested.