The episode starts with the Queen searching for her soon who’s sleeping with his concubine. She takes him away and warns the concubine who tried protesting. Crown Prince, Queen’s elder son meets with Queen Do Wager with his family to get her blessings. The Queen is elated to meet them. At court, the majesty is discussing about the problems of the people including riots and plague while it’s decided to open relief station to provide food for the infected without keeping close contact. The Queen searches for her another Grand Prince Seong Nam. She’s in hurry as the test for intelligence is about to start. Grand Prince Seong Nam is seen riding his horse. All the Prince’s introduction all with their Concerts is done who’s on their way for the test. Queen woke up her son Grand Prince Mu an to go to the test. He’s on his way while Prince Bo gum is really sorted and intellectual. The crown Prince performed well in his tests while Bo Gum toped the remaining Prince’s test.

The scholars praise the Crown Prince for his clarity and intellect. None of the Prince’s could perform well like Bo gum. The Queen meets with Dowager who reprimands her for not raising her sons properly like Crown Prince. They get into an argument with Queen Dowager who called her sons troublesome. She left to Crown Prince’s tutor who praised a lot about the Crown Prince’s intellectual. Prince Ui Seong spoke ill about Queen and the Queen Do Wager comes there. She asks about he reason for the fight but none answers. Ui Seong gets sent away while the remaining gets punished to kneel down there for straight 23 hours. Queen is discussing about her sons with Crown Prince. Suddenly Crown Prince faints shocking Queen.

Ui Seong gets punished by his mother who asks him to develop his ability to surpass the Crown Prince if he really wants to take his place and not by cheap words. Queen Do Wager’s concubine tries sneaking into Queen’s room while delivering the message that D Wager wants to meet her. The queen’s concubine prohibits her from meeting the Queen. The Queen learns that the Crown Prince suffering with the same anemia disease which killed former Crown Prince Tae San. She learns that the Royal Physician Choi may have the treatment for it. However, she scolds the concubines for keeping it a secret. They say that it’s the Crown Prince who wanted to hide his illness from his mother. The Queen decides to keep it away from he others and pretend like the Crown Prince has skin disease.

The Queen goes to meet Queen Do wager but she was not at her place. The Queen rushes back to her chamber to find Queen Do Wager there but comes before she could enter in. She realizes that the Queen started suspecting her and also learns about her sons getting punished. She reaches there to find them kneeled down in heavy rain and cold and sends them to their chambers. The Princes learn that it’s Tutalege of relations class which is also known as sex education. Mu An is the active among all during the class. King visited Queen Do Wager and says about sending the Cohart to China for political reasons. She learns that the Cohart of Sigangwon is going to be empty and wanted to select one among the Princes as the next Cohart.

Queen gets alerted with Do Hwanger’s decision over hiring the Prince as Cohart. Concubine meeting is held and there seems to be a distinguishes between the concubines as officially assigned concubines and the ones who were chosen randomly by the King. Ui Seong mother belongs to the official concubines and they look down on the other concubines. Queen announces about the Cohart selection and few wants to send their sons to take part in the test. Mu an suggests Prince Bo Gum to get selected who’s really intellectual. Consort Tae takes the queen’s permission to get Prince Bo gum apply for it and the Queen acknowledges it. First Senior Consort alerts the other consort that it could be a trap as Cohart is nothing but a shadow of the King. The Consort discuss among themselves about how Do Wager a mere Consort like them managed to become the Queen. They are sure that there was some secret and wants to get it from the Queen Do wager.

Bo Gum’s mother, Consort Tae visited the Queen Do Wager for the help who gives her the book that has her secrets. She asks for something in return too. Queen visited the King to ask for him to send the Royal Physician Choi but King told a shocking news that it was Queen do Wager who sent him out of the city and she gets doubtful. She also learns from her maid that Consort Tae got a secret book from Do Wager and rushes to the Crown Prince’s chamber. queen Do Wager is present there who says the Queen about her plans to change the King. Queen calls her heartless for doing it to her own grandson and Queen Do Wager says that the King is more important than one’s own feelings. Queen gets terrified and asks the maid about the real Queen Yoon who was sent away by Do Wager to take her place. Maid says it’s a secret why Yoon left it to Do Wager and says the same thing is repeating for her. Do Wager sends a copy of the secret book to all the consorts for their Princes to participate in the Cohart. The Queen visits the real Queen Yoon who now lives a poor life with her grandson. Yoon is not pleased to see the Queen and asks her to leave but Queen begs in front of her for advise as he is in the same situation as she was once.