Crash Landing on You (2019)

Both female leads find themselves in a difficult situation until they meet a man that will supposedly save them. They find themselves in situations where they end up faking their love (DAYS - so that he will die) (CLOY - So that she doesn't die or get caught as a South Korean). Through this, they both bicker quite a bit but eventually gain feelings for each other. Although they start to like each other, they both do not realise. The male leads have both made the promise to keep her safe but when she sacrifices herself, they become quite frustrated and realise they may have feelings.

Both are about friendships and or romances between people from the North and the South.
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Both are fish out of water love stories. Both are about opposites attracting and having to overcome insurmountable odds in a dangerous world to be together. Both are fictionalizations of real worlds. Both are top 5 highest rated TVN shows & top 10 highest rated cable shows of all time at the time this recommendation was written.

North and south Korea. Beautiful love story. Family remain despite political differences. Border can’t block humanity

North and south Korea. The border, way to cross the line. Secret crossing. Some sadness, some toughness, some humanity

Politically wrong, North and South Korea, war is sad. War pressure. People are loving and sweet disregard of the political differences.