Michelle Topham 
The ongoing tvN drama Undercover Miss Hong, Episode 6 aired on Sunday night to the best ratings of its run so far.
According to Nielsen Korea, the Korean drama grabbed 7.99 percent of the nationwide rating, which is a substantial increase from the 5.85 percent it earned for Episode 5.
The K-drama performed equally as well with audiences in Seoul where it garnered an even higher 8.68 percent — up from the 6.12 percent of its previous episode.
Undercover Miss Hong, Episode 6 also was the #1 most-watched TV series in its time slot amongst 20 to 49 year olds, which is the most important demographic for advertisers.
In other words, the Korean drama started out well on January 17th with a solid 3.51 percent for its opening rating, and has then skyrocketed from there.
International ratings for Undercover Miss Hong
With six episodes now released, Undercover Miss Hong is still performing very well with international viewers.
On My Drama List, Undercover Miss Hong is still earning a very good 8.1 out of 10 from almost 1,200 viewers, while IMDB viewers are rating it much lower at 7.2 out of 10.
But, considering IMDB has had a problem with their users deliberately downrating Asian dramas for a long time now, that’s probably expected.
Meanwhile, Undercover Miss Hong is performing extremely well on Netflix after its sixth episode dropped, as it is currently sitting at #6 on the streaming platform’s Top 10 Non-English TV Series chart.
The drama made it to that spot after being viewed 1.9 million times for a total viewing time of 9.3 million hours during the last week.
Undercover Miss Hong stars Park Shin Hye alongside Go Kyung Pyo, Ha Yoon Kyung, and Cho Han Gyeol.
The Korean drama’s next episode airs on Saturday, February 7th, 2026. Let’s see if the K-drama continues its skyrocketing ratings then, eh?
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