After I Transmigrated into a Book, I Became the Villain's Contract Beast

She accidentally transmigrated into a book. Becoming a human would have been fine, but she ended up as an egg, and after hatching, she became the contract beast of the story's big villain?!! Tang Guo was absolutely horrified!

The big villain wants to eat her? I'm the beast who saved your life!

The big villain wants to give her away? I'm the beast who saved your life!

The big villain thinks she eats too much? I'm the beast who saved your life!

After being saved by a beast and forming a contract with her, big villain Yan Jinyu was quite pleased.

Other people's beasts surely weren't as adorable, well-behaved, or capable as his.

But... if she was supposed to be his contract beast for life, why had she suddenly turned into a pretty, petite young woman?