Episode list

Tensions are high after Jang Hee Jae gives Quing China the phony military log. Jang Hee and Queen Jang are relieved when the Quing Chinese Emissary issues the Imperial Endorsement for the Crown Prince Investiture.

Oh Tae-seok, the Namin political leader, frames the murder of Minister Jang Ik-hun on a secret swordsmen society. The society is led by Choi Hyo-won, a commoner. His daughter, Dong Yi works with other poor childen unloading boats. She was one of the last people to see the Minister alive.

The Society is accused of murdering more political leaders. Choi Hyo-won discovers Oh Tae-seok is behind the crimes. He takes Dong Yi to a safe house but she runs away. Choi Hyo-won is framed for the murder of the police chief's father.

Choi Hyo-won and his men are arrested and escorted to prison. On the way, the men are attacked and killed. Cheon-soo was tasked with protecting Dong Yi. She flees from the police officers.

Dong Yi wakes up in a shed next to a murdered man. The police can find no body when they investigate. Lady Jang is blamed for the unpopular sound change of a musical instrument. Dong Yi meets a man who is actually the king in disguise.

Dong Yi and King Sook-jong are threatened by masked men. The Queen Mother is involved in a conspiracy with the Seoin political faction. Dong Yi discovers the reason for the different sounding musical instrument. Ok-jung blackmails the Queen Mother.

Namin party members replace the Seoins in ministry positions. Police Chief Seo Yong-ki suspects Dong Yi of being the daughter of Choi Hyo-wan. The Namin fears being blamed after someone poisons the King's tea.

Ok-jung announces her pregnancy after she receives the royal concubine rank. She later gives birth to a boy. Her brother, Jang Hee-jae, receives a promotion to royal police chief. The Queen Mother interferes with plans to make Ok-jung's son a crown prince. The court ladies are called in to investigate the suspected poisoning of the Queen Mother.

Dong Yi is questioned by the police about the disappearance of a doctor. The King notices the Queen's freckles have changed color. The Seoin and the Queen Mother try to throw suspicion on Ok-jung after learning she brought medicinal herbs into the palace.

Chen-see puts Dong Yi in Seol-hee's care. A body is identified as Dong Yi's. The police chief knows otherwise but says nothing. Seol-hee passes Dong Yi to the head of the royal music school, Hwang Joo-shik.