After Transmigrating, I Found Out It Was a 19+ Dark Romance, Not a Healing Story

※ All characters, events, place names, and settings in this book are fictional and have no relation to actual facts. Sa Ha-hyun has possessed the body of an 'assassin' in a novel his deceased younger sister used to read. Firmly believing that the original story was a healing growth tale, he happens to save a young boy who was on the brink of death. And ten years later— Having been taken as a prisoner to an enemy nation while cross-dressing as a princess, Ha-hyun reunites with that boy from ten years ago, Wi Mu-won, who has become the Emperor and was waiting for him... ---EXCERPT--- “Open your eyes, Jae-in. You must look at me properly.” There was nowhere to run. Ha-hyun lifted his tremb...