Meowing with My Best Friend After Wearing a Book

Shen Mengchen and Gu Mumu are wearing books, so just wear them! But why? Dressed as two cats, it's okay to be two cats, but it's the heroine's cat. What should I do if the book says that the heroine's cat will be mistreated? Of course, run fast, as far as you can. However, isn't this book a love story? How can animals transform, and there are immortal cultivators.