My predecessors have been reborn

Luna Van has been oddly unlucky. She has done nothing wrong, but she has been treated as a vain gold-digger.She gets dumped every time after gets engaged.
Until She married a man whose face was ruined, whose legs were crippled and who was called the Duke of Bluebeard. She's getting her life back on track, getting better.
She loved her husband, and he was kind to her... While everyone thinks her husband is a monster to be feared, Luna Van finds her husband adorable.
But unbeknownst to Luna Van, she is the main character in the book and her husband is the villain in this story.
In the plot line changed by the book Walker, all the people who have degraded him for various reasons have been reborn. Luna Van's original life has been changed by the existence of a book walker, and they are too late to realize Luna Van is the most beautiful angel in the world...
Everyone is determined to make it up to Luna Van and take care of her in any way they can!
But Luna Van is already married!
-- They're the ones who handed Luna Van to that demonic pervert!