Sungnyang disguises herself as a man and works to free women who were sent to be Yuan concubines. King Wang Ko orders Sungnyang to get close to Wang Yu to lure him into an ambush.

Sungnyang reveals to the Crown Prince that there is a spy among them. Prince Togon is exiled to Koryo.

Sungnyang mistakes the Yuan Prince for a Yuan soldier. For the prince's protection, the Koryo King barricades the prince within the Koryo palace.

The Yaun Prince asks Sungnyang to teach him how to defend himself. El Temur plans a full-on attack on Daechong Island in order to kill the prince.

Sungnyang and Prince Togon continue their way to Kaegyong to find the Koryo King. Meanwhile, El Temur takes Koryo's palace under his command.

Yom falls for Sungnyangs trick and brings in Prince Togon's body into the palace. Prince Togon becomes conflicted about choosing to tell the truth or becoming emperor of Yuan.

The King of Koryo finds out that Sungnyang is a woman and tires to protect her from Tangqishi. Meanwhile, at the capital of Yuan, Tanasiri is taking lessons to be empress.

Sungnyang plots to take revenge on Emperor Togon during his wedding ceremony. The King of Koryo and Yom Byongsu are to duel to see who will be commander.

The Koryo King defeats Yom and takes command, but is given poor resources to prepare for battle. El Temur is enraged when he finds out that the Emperor has taken in a concubine.

The Koryo King leads his men to their first victory against the Turks. The Emperor makes Sungnyang a part of his retinue.

The Empress orders Sungnyang to feed Lady Pak a powder that will cause her a miscarriage. The Emperor further suspects Nyang of being Sungnyang.

Nyang is ordered to spread rumors that Lady Pak is faking her pregnancy. General Bayan disguises himself as Batolu, but runs into unexpected trouble on the battlefield.

Lady Pak is brought in front of the inquisition to be re-examined. Sungnyang receives a written promise to be let out of the palace, but gets caught by the Emperor.

Wang Yu brings victory with him to the Yuan Palace. The previous Yuan Emperor is said to have written a blood vow before his death and all are scrambling to find it.

Wang Yu comes up with a plan to infuriate El Temur, but needs Sungnyang to accomplish it. The Emperor challenges Wang Yu to a soccer match.

El Temur tries to find the one who sent the appeal. Wang Yu finds out that Sungnyang was the one to help and decides to not see her again.

The Emperor and the Queen Dowager ask Wang Yu if he is interested in marrying one of the princesses. The Emperor opens a shadow play for Yang but uninvited guests decide to join them.

The palace fills with rats and begin the curse of the late Khan. The emperor decides to actively search for the Blood Vow.

Wangyu and Yeonchul comes up with a plan to fake Yeonchul's death to find out who are loyal to him. Nyang tell the emperor that she does not want him to speak to her again.

Wangyu meets with the Dowager and wins her trust. Wangyu asks Nyang if she wants to be his Queen once he goes back to Koryo.

WangYu receives permission from the Regent to return to Koguryo to visit his "sick" father. Nyang and two others stay behind to look for Jukho to find the blood vow.

The emperor decides to hide injured Nyang in the pavilion so the regent's men cannot find her. Nyang's party is attacked by thieves while they were trying to help Nyang escape.

Nyang gives birth to a son with a unique dot on his feet. The emperor and Wang yu finds out about Nyang and plans their revenge against the empress.

Nyang is found by Bayan in Liaoyang province while she is being sold as a slave. Nyang discovers the blood vow and shows it to Bayan.

Nyang begins the selection process for the consorts as she fights through the obstacles the empress sets up. Wang Yu continues to find who is behind the counterfeit money.

Nyang becomes a consort and begins to fight with the empress with the support of other people from Koryo. Wangyu is fighting to stop counterfeit money from entering Liaoyang.

Nyang begins to teach the Emperor how to read and write every night by disguising it as a party. The empress decides to lock Nyang in the archives and give her an impossible task to finish.

Nyang begins her plan to take the empress' power away from her. Wangyu meets with Hukso to get Musong back by telling Hukso that he is the husband of El Temur's niece.

WangYu finds out about Nyang's situation from Tal Tal after they arrest Huksu. Nyang continues her revenge on the Empress.

Nyang and Wangyu finally meet together and go their own ways. Feisu finally completes deciphering the book they found in Huksu's house.