The King 2 Hearts

Set in an alternate-universe modern South Korea governed by a constitutional monarchy, the series follows Lee Jae-ha, a carefree and politically indifferent crown prince who is forced into a strategic arranged marriage with Kim Hang-ah, a legendary top officer in the North Korean special forces. Initially clashing due to their opposing backgrounds and ideologies, the two must navigate intense political conspiracies, international espionage, and the looming threat of war. As they learn to trust each other, their alliance becomes the key to uniting the divided peninsula against a common, shadowy adversary.