Transmigrated as the Villain's White Moonlight: His Treasured Obsession

She never asked to be transmigrated into a romance novel as the villain's tragic first love—the white moonlight destined to die young. But when the cold, ruthless antagonist discovers she's alive, everything changes. No longer content to watch from the shadows, he claims her as his most precious treasure, showering her with an obsessive devotion that rewrites the entire plot. Can she survive being the villain's beloved in a story that was never meant to have a happy ending?