The best in the world, excellent martial arts, overflowing money and pleasure----the center of the magical world, Black Astronomy. Kang Hee-ran, the granddaughter of the owner of Heukcheonmun, lives a life that has nothing to lack and nothing to be envied of, but dies at the hands of her stepmother. And for some reason, Heeran reverted to her younger self! In the life that started again, she goes down quietly and kindly with her warm nanny. The first step of revenge begins with making the third Confucius, Kang Lun, the king of the underworld who will soon rule Black Astronomy, into a man of Heiran...!! I was trying to live...