The new king of Goryeo and his Yuan queen are attacked by assassins; Choi Young searches for a doctor from the heavens.

Eun Soo saves the queen's life; the queen tries to run away.

The king asks Choi Young to find the traitor among his retainers.

The king asks Eun Soo to become the royal doctor; the adviser tells Eun Soo they're uncertain when the portal will appear again; the queen asks Choi Young if the people wish her and the king dead.

Gi Cheol makes a bet with King Gong Min over who can gain Eun Soo's loyalty.

Eun Soo and Choi Young must convince Gi Cheol that she really is from heaven.