A very loose Joseon adaptation of Beauty and the Beast.There’s a rumour about the Prime Minister’s son, that he sometimes act like a human and sometimes acts like a beast. Dang Seol’s only family, Myeongjo, left for Hanyang one day and never came back. Seol finds out that Myeongjo was taken to the Prime Minister’s house and seeks to find her only family back but ends up coming face to face with a human-beast.