Song Yuna is the INNOCENT VISUAL and Lead rapper of fairydust, the newest korean girl group under Pledis Ent. But behind of her innocent visual is her secret life as the daughter of one of the most dangerous Mafia in south korea... Also because of her innocent visual. She got the attention of Seventeen Yoon Jeonghan... Will jeonghan still be admire her if he will know where she came from? That behind of her innocent face, she is the daughter of a mafia!!!