This is a story about a young girl who disguises herself as a man to help noble individuals with their love affairs. The action takes place during the Joseon era. The charming individual named Hong Ra-on transforms into a man in order to give other men various love advice. Often, men do not know how to behave correctly with women, what she expects from the first date, and how soon they should take more decisive actions. One day, the heroine meets the crown prince, Hyomyeong...