I had to drop it because I couldn't stand listening to the girl's baby voice.
The story has been done before. Nothing new from what I saw. The art style is fine most of the time. Sometimes the characters looked a bit awkward but that's probably intentional and it wasn't a big deal. I don't recommend this if you dislike girls talking like they're a baby. This is a common trend in Chinese shows so if you've watched enough of them, you'll know what I mean when I say baby voice. To some people, it is "cute" and "innocent". To me it's just annoying.