The Antagonist's Pet

Blessed with the face of an angel, young Sasha Tartt knows a life-altering secret: in this romance novel where she's just a side character, she's the only one who knows the true ending! When the antagonist of the story takes a particular liking to her, she must decide between helping the clever and beautiful Rebecca find a happy ending, or siding with the sweet-natured protagonist to ensure her own survival. On top of that, Sasha has to juggle the affections of her bespectacled love interest and tame a dragon boy! Sasha will have to use all of her charm and wit to win the hearts of the main characters and change the fates of those she cares about.

(Source: Tappytoon)