At the beginning I didn't like Kagura much. The couple Sakaki-Kagura made me dislike Kagura even more. The fact she acted a bit like Tomo kinda made her seem a Tomo's clone with less personality. But this was only during her first appearances. Later she becomes a really enjoyable character, IMO.
PS: kupo, have you read the manga as well? I could only read a few strips on the Internet.
Do you know how many volumes is it?