My Sister Is the Main Character

Reincarnated into the world of a novel, she makes the ultimate sacrifice: taking her sister’s place in a grim imprisonment. But her selfless act backfires spectacularly when the story’s most dangerous and obsessive duke sets his sights on *her* instead. He flirts, he threatens, he even vows to confine her, yet an undeniable, forbidden attraction sparks between them. Can she escape his possessive grasp, or will she succumb to the very man she tried to avoid? Dive into chapter 1 to uncover her fate!