Jo Kang Hee was once a legendary badass in her teenage days—and as a Busan girl, she would have been extra rough-and-tumble. Daughter to a sashimi-restaurant-owner mother who loves to swear and a father with a rap sheet for fighting, Kang Hee inherits her parents’ penchant for cursing, quick temper, and sashimi knife skills.
As a young mother, she is the kind of person who prefers dramas to news or current events. But when she finds out that her daughter, Oh Ah Ran, is being victimized by bullies at school, she decides to do something about it directly, and what ensues is a positive, upbeat, and poignant” story that seeks to highlight trouble spots in South Korea’s educational system.
Thirteen-year-old Heo Yeon Woo, the daughter of a high-ranking official, accompanies her mother to the royal palace to attend her brother, Heo Yeom's civil service examination congratulatory ceremony. By chance, she comes across Crown Prince Lee Hwon. They fall in love and Yeon Woo is chosen as the Crown Princess of Joseon.
Before they can marry, however, the Dowager Queen secretly orders her death, in order to install Yoon Bo Gyeong, the daughter of a family clan, as Crown Princess, thus securing more power for herself. She orders head shaman to cast a spell on Yeon Woo to stricken her with an unknown sickness. After dying, Yeon Woo is resurrected from her grave, but loses her memories. All believe her to be dead, including the Crown Prince Lee Hwon, who refuses to love another. Eight years later, Yeon Woo returns as a shaman named Wol (meaning moon). Meanwhile the young king begins to investigate the death of his love after seeing the grown up Wol. But he is fighting against time, because the queen's powerful political clan wants him removed from power.
Kim Hyun-Woo is a Harvard Law school freshman from Korea. He is very calm and composed in and out, warm-hearted who has enough to spare of money, honor and power.
Lee Soo-In a Senior student at Harvard Medical School. She is a smart and intelligent, immigrated when little and while being brought up by her hard working father, she gained her independence and vitality. She is very honest with her feelings and knows what true love is, therefore she is ready to give up her chance of her lifetime for her love for Hyun-woo. Jung Min Hong (Lee Jung-Jin) An American rationalist and man of principles.
Good mannered dresses neatly and has an aristocratic appearance. He has a rather cold and intellectual look, and is full of confidence. One may tend to think that he was brought up with no difficulty, however he’s deeply hurt by the lost of his father. His father had passed away after his company went broke during a lawsuit lead by Hyun-Woo’s father’s law firm. Yoo Jina (Kim Min) A typical girl raised in America. She is tenacious and possessive girl, who has to get what she wants no matter what. She has a desire to simply possess Jung-min at first but she falls in love with him. To win his love, she comes up to the point where she sacrifices herself, but nevertheless she fails to win his heart.