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

[My new book, The Metaphysics Master Is a Tiny Baby: Change Your Fate? Pay Up!, is now online. If it isn’t sweet, you can bite me! One-on-one doting romance.] She accidentally transmigrates into a book, and becoming human would have been bad enough, but she’s turned into an egg! After hatching, she becomes the contract beast of the story’s great villain?!! Tang Guo is absolutely terrified! The great villain wants to eat her? But I’m the beast who saved your life! The great villain wants to give her away? But I’m the beast who saved your life! The great villain thinks she eats too much? But I’m the beast who saved your life! After being saved by a beast and forming a contract with it, the great villain Yan Jinyu is quite pleased. Other people’s beasts can’t possibly be as adorable, well-behaved, or capable as his. But... they agreed she’d be his contract beast for life, so why has she suddenly turned into a gorgeous, adorable young woman?