The Not So Villain Antagonist

Once the book was given, the story will begin.

—

Claui was given a strange book by a strange stranger and little did she now, once her hand touched the book, her role in the story begun.

She was bound to be the villain antagonist, the one who will steal the male lead from the female lead in order to make her suffer.

That's what she have to do. That's her role in the story, but the question is...

Will she be able to play her role once the struggles had set?