This charming girl can’t live without karaoke. Unfortunately, her voice is far from perfect and people around her keep telling her she should stop singing. One night as she came back home crying, she met the Devil who offered her a deal. She needs to win a singing contest and in return he will give her the most beautiful voice in the world. But if she loses, he will take her soul. Help the girl fulfill her dream and pass all the trials prepared for her by the master of evil!