Within the palace exist troublemaking princes who cause nothing but headaches for the royal family and are about to be turned into proper crown princes. Their mother, Im Hwa Ryeong, is the wife of a great king. But instead of having an aura of elegance and grace, she is a prickly, sensitive, and hot-tempered queen. Once more serene, she changed since people kept pushing her buttons. She is a queen who sometimes abandons her pride and is even known to swear! Every day of her life is full of trials, but she withstands them, all for the sake of her children.

18-year-old Ga Doo Shim who wishes to live as a typical high schooler but is born with the undesired fate of becoming a shaman. She is a brave and strong character who will fight evil spirits as she works on solving mysterious cases. Na Woo Soo, a nearly perfect high schooler with a wealthy background, handsome looks, and outstanding grades. When Ga Doo Shim suddenly appears in his life, he gains the ability to see evil spirits, and the two get entangled in mysterious cases together.