Secret Door

There's a record of murder. 10 years after the fire of Seungjungwon, the blind man emerges from the dust.

One of the ministers suffers a concussion after begging from the King. King Yeonjo blames it on Lee Sun.

Shin Heung Bok's death was suicide to slander the palace. The Crown Prince is in shock.

Another suspect is seen as an accomplice to Shin Heung Bok's death. The Crown Prince fixes how he's treated.

Gye Hee gets a promotion, and he's asked to change the law. The Crown Prince goes for a drink.

The Crown Prince finds out the arrow had been drawn from a government office.

Ji Dam and Lee Sun realize that the letter was written in Googyul and not Chinese character.

Kang Pil Jae is set to be killed. The Crown Prince needs to find him, but something else turns up.

Lee Sun is charged with murder, and the interrogation takes an unexpected turn.

Ji Dam receives permission to be part of the investigation. Pil Jae's body is re-autopsied.

Ji Dam is offered the role of being a royal concubine. The Crown Prince is not happy with the King's reward.

The King is a sinner, and the Crown Prince finds out the news.

King Yeongjo finds out that the Crown Prince knows the secret. The Crown Prince asks him the wrong questions.

The Crown Prince asks his father to end the slaughters. There's too much death over the document.

Lee Sun needs to persuade the Chinese ministers, and his position in royalty is in the line.

An action that started with rotten ginseng leads to another chance in love between China and Joseon.

After he realizes what kind of politics his son has in mind, the King gets hit by a bad dream.

There's a conflict between father and son in royalty. That, however, is to prevent chaos from spreading.

Lee Sun fights for what the people want: a fair chance in the exam. King Yeongjo disagrees with his son.

The Crown Prince and the Princess are no longer allowed to meet the King upon royal requests.

The Crown Prince needs to be worried. However, he knows little to none about the threats on his father's life.

After sending over a delegate to Pyongyang, the King now gets furious over Lee Sun.

There are people headed towards Kwangseo. It's a two-faced mission in favor of opposing sides of the kingdom.

Lee San gets closure from King Yeongjo. Lee Sun is escorted peacefully away from his family.