Sol Soon-ja is a young fashion designer living in the modern world, suffering from mysterious headaches and strange dreams of a man she has never seen before. But after suddenly collapsing, she wakes up in the Joseon era inside the body of Sol Yeon-hwa - a yangban lady forced into a marriage she never wanted. Just as she tries to escape her fate, a cold and feared prince crashes the wedding in blood, changing her life forever. Now trapped in the past, Yeon-hwa must survive palace secrets, dangerous enemies, and a love that could destroy her fate.