Magical Nyan Nyan Taruto (魔法少女猫たると, Majikaru Nyan Nyan Taruto?) is a Japanese anime television series. The series centers around the exploits of a race of pet cats, drawn as catgirls and the occasional catboy.

Source: Wikipedia

The main character is a young cat named Taruto who is believed to be the missing princess of the Kinka clan. After meeting Charlotte and Chitose she and her new friends begin to deal with problems such as Nachos(actually a boy) and Potechi, the cat-collector Anzuko and throughout all this is apparently being hunted down by a group of black robed cats who show up in the start of the series and again in the middle and near the end.