The second episode of 'The King, Two Hearts,' aired on the 22nd, shows Kim Hang Ah (played by Ha Ji Won) putting makeup on to go meet a man she loved.
At this moment, she is going through a subway station in North Korea. The setting is decorated with posters and propaganda to better portray the location.
However, in this scene, behind Ha Ji Won shows the entrance machine that became the source of the filming mistake buzz.
Netizens responded with, "North Korea has South Korea's entrance machines?", "It's a cute mistake so I'll let it go," "I wonder how North Korea's subway stations really look like," etc.
On the other hand, 'The King, Two Hearts' got a viewership of 16.5%, taking first among its rivals.