Netflix K-Drama Sees Viewership Double in Record Time

Park Shin Hye’s new drama Undercover Miss Hong is blowing up fast. Ratings doubled in just two weeks.
The tvN and Netflix series started airing January 17. It hits every Saturday and Sunday at 9:10 PM KST, streaming on TVING and Netflix.
Set in Seoul, 1997, the story follows elite securities inspector Hong Keum Bo going undercover as a junior employee at a shady investment firm. Mixing suspense and comedy, the show quickly grabbed viewers’ attention.
Episode 1 started with a 3.512% national rating. By Episode 4, it soared to 7.408%, the highest so far.
This chart shows the sharp rise:
— Nielsen Korea via Wikipedia
Fans are loving Park Shin Hye’s performance above all.
“Park Shin Hye acts amazingly, and her diction is spot on too. Love it.”
— Fan comment from TheQoo
“Seriously, this is crazy fun. I watched all the recent dramas, and this is by far the best. I should have waited until it finished to binge.”
— Viewer reaction
“It’s fun, and Park Shin Hye’s voice is so well-controlled that it’s easy to listen to.”
— Comment
“Everyone’s acting is amazing, and Park Shin Hye is just too cute lol.”
— Social media comment
“Super fun! It’s been a while since a drama grabbed me like this.”
— Fan post

Viewers can watch the trailer here:
Undercover Miss Hong isn’t just another weekend drama. With its fast rise in ratings and praise for Park Shin Hye, it’s a hot pick for 2026.