The Princess Survives a Trial, Transmigrates into a Book, and Rewrites the Plot at Court, Spoiling Them Rotten

[Historical romance, transmigrating into a book, everyone's favorite, princess, adorable child, mind-reading] Jiang Keke, the little princess of the Demon Realm, transmigrates into a book. [Wait, isn't that the tyrant? Oh no, has he gone on another killing spree because he's been cheated on too many times?] The Emperor: I am a wise ruler. How could I possibly be a tyrant? And what's this about being cheated on? [Isn't that the Seventh Imperial Brother? He's quite handsome, but the poor thing was framed by the Empress at a young age and exiled to some remote place.] Seventh Imperial Brother: ...? [And there's the Sixteenth Imperial Sister. She had such a bright future, but she turned down the Chancellor's son and fell for a concubine's son instead. In the end, she was sold into a brothel. How tragic.] Sixteenth Imperial Sister: I never would have known if I hadn't heard her thoughts. Ever since this precious princess arrived, the fate of the country has changed. Huh? Why is the kingdom's fall from the book no longer happening? From then on, she became everyone's darling.