Bound to the Demon Lord

Wren Sullivan and Stella Sullivan transmigrate into a book, becoming cannon fodder sisters sold into the black market by the fox demon male lead. Bound to a survival System, they must complete the original plot to return home. They see through Jasper White's sinister intentions. They encounter Abyssal Serpent Kaelen and Wolf Clan's Aidan. The sisters expose the fox demon's conspiracy, break free from their tragic fate, and find happiness with their demon lords.