My Dearest S01E06 - Episode 6

Jang-hyun and Ryang-eum disguise themselves as intruders to sneak into their troops and meet Khan. However, the enemy was not easy to fool. The King of Joseon wants to make peace with them before they bring further disaster, but his subjects want to fight them instead. Therefore, Khan cannot wait any longer and proceeds to conquer Ganghwa Island.