Joseon. Seolhee. Hyewon. The three families of the little ladies, who were childhood friends, are falsely accused of treason and face extermination. Knowing the injustice of the loyal subjects caught in the scheme, the king secretly orders that only their daughters be saved. With the king's help, Joseon and Hyewon are safely rescued and spared their lives, but the whereabouts of Seolhee, who was secretly helped to escape by a maid, cannot be found. Joseon and Hyewon, who were helped by the king, head to Qing. Eleven years later. A young man, the adopted son of Han Myung-soo, who has returned as a wealthy merchant from Qing, appears in Hanyang. A carefree man, he behaves just like his name suggests, but he is a man of exquisite beauty, even more beautiful than women, and is called 'Joseon Hanryang Flower Young Man.' Following him, a group of female assassins emerges in the capital, and the people name this group of women the righteous guests, calling them 'Righteous Guest Honghwa Dan.' Returning as the female swordsman group, Righteous Guest Honghwa Dan, are the two childhood friends, Joseon and Hyewon. Seolhee, the childhood friend who has become the best gisaeng in Hanyang.