Who Kill Cats Nine Times

In a world where cats literally have nine lives, no one ever thought that they would be killed in one blow. Not even Nini, a stray cat who was witness to one such incident. Fearing for every cat's lives, she goes to seek the help of Ryne, another cat who was cursed to become a human. Along with some other people they meet, they soon find out that the whole issue is bigger than they thought.