"Fallen Grace" is an Otome Romance popular among the young women of South Korea. Somehow, Nae Young-Soo, opened his eyes in this very game. And it seems he's the pitiful younger brother of the villainess, a minor character killed by the Male Lead just for existing. In order to survive in such a horrid situation, the only way is to change his sister into the female lead so he could live a peaceful life. But what's happening right now? How come the story took a strange turn? "You said my eyes were like jewels. Then I wish for you to stare deeply into them and see how strongly I feel for you." "How dare you run from me. Only you can make my heart beat!" "Do you like roses? Then I shall shower you with red roses until you look toward me." Young-Soo has attracted a dangerous character! Why's the Villain suddenly obsessed with him?! And the Female Lead has taken an interest in his sister, how did the story get so twisted?