In the series finale, Ga Eun makes a decision that she thinks is for the best. Lee Seon makes a terrible realization.

Hwa Goon vows to win the Crown Prince's heart. The Crown Prince finds out why he must wear the mask.

The Crown Prince persuades the largest merchants to rise up against Dae Mok, and then goes off in search of copper.

After five years, Chilpye is a thriving marketplace and the Queen Regent has not yet stepped down.

Lee Seon is unsure what to make of the Crown Prince's gift and he makes some surprising moves.

Ga Eun is heartbroken to learn the truth.

Hwa Goon helps the Crown Prince and Dae Mok tells Lee Seon that he must now wear the mask.

The Crown Prince goes to the meet point to catch the copper thieves in the act.

The Crown Prince uses the stolen copper to further his plan. Lee Seon finds a way to invite Ga Eun back to the palace.

Dowager Queen has her own plans for Ga Eun. The Crown Prince overhears Ga Eun pining for Chun Soo.

Hwa Goon makes a deal with her grandfather to save the Crown Prince. People are starting to figure out who the Crown Prince really is.

Yang tries to draw the location of the poison. Lee Seon sneaks out of the palace to see his family and runs into some people he did not expect to see.

Dowager Queen enlists Ga Eun to help her figure out what hold the Pyeonsoo-hwe have over the King. Word that the King is a fake has begun to spread.

The Crown Prince has to decide if moving the army from the border to attack the Pyeonsoo-hwe is the right move.

The Crown Prince asks Hwa Goon to help him stop Choi Heon's army. The palace prepares for the Dowager Queen's birthday celebration.

Lee Seon tells Ga Eun that he did not kill her father. The Dowager Queen plans to use the Crown Prince to fight the Pyeonsoo-hwe.

When the Crown Prince sneaks into Dae Mok's house, he learns more than he bargained for. The Dowager Queen starts the Queen selection process.

Lee Seon and the Crown Prince worry about Ga Eun. Hwa Goon joins the marriage selection process as a judge.

Falsely imprisoned, Ga Eun is visited by both the Crown Prince and Lee Seon.

The Crown Prince is determined to save Ga Eun, but Dae Mok is one step ahead of him.

Following the Crown Prince's initiation into the Pyeonsoo-hwe, there is a power shift in the palace.

Ga Eun and Lee Seon's family worry about his safety as he pursues what he wants.

Hwa Goon takes her revenge on Dae Mok.

Hwa Goon faces Dae Mok's wrath.

The Crown Prince wonders if he has the right to reclaim the throne.