My first impression was "This is going to be a very fun ecchi comedy!" but as it turns out, there's no ecchi, just comedy and romance.. I would personally remove the "ecchi" from the genre tab.
I was a bit disappointing at first (mainly because I was in the mood for ecchi comedy)... currently in volume 2 they still haven't really progressed as in a relationship - from the description I was under the impression that she was to seduce him, but they are both just innocent kids, leaves me to believe they will never progress from their current standpoint.
Don't get me wrong though, this is high quality entertainment, while it does lack somewhat in the context of story development (as I've mentioned), it doesn't really need to develop. It's a cute story about a cat, who is also a girl - which is bound to be hilarious 😉
9/10 due to lack of ecchi.
EDIT: The way the characters behave, in a sexual yet non sexual existence, is VERY similar to Nazo no Kanojo X, so, if you like*/dislike* that stuff, I would suggest to read*/skip* this comic.