100 Days of Deception Reaches Double-Digit Ratings With Tenth Episode
The tvN weekend drama starring Kim You Jung and Park Jin Young surpasses the ten percent milestone for the first time.
Published 8 November 2026
Reaching Double Digits
The weekend drama 100 Days of Deception has achieved a major milestone by crossing the ten percent ratings threshold for the very first time. Nielsen Korea data indicates that the tenth episode of the broadcast reached a nationwide average of 10.7 percent while peaking at 12.0 percent.
Viewership figures within the Seoul metropolitan area proved even higher. In that region, the program secured an average of 11.7 percent alongside a peak rating of 13.1 percent.
Breaking Previous Records
This latest accomplishment establishes a fresh personal best for the broadcast. The previous high water mark was set by the eighth episode on November 1 at 9.8 percent, which the new broadcast has now comfortably surpassed.
Production representatives noted that the tenth episode claimed the top position in its respective time slot across every broadcasting channel, including terrestrial networks. Furthermore, it secured first place among demographics aged 20 to 49 for both male and female audiences.
Consistent Weekly Growth
The spy romance has demonstrated an upward trajectory in viewership since its initial premiere. Sunday broadcasts have exhibited a steady climb, moving from 7.6 percent for the second episode to readings of 9.0, 9.5, and 9.8 percent before hitting the recent 10.7 percent high.
Saturday broadcasts have mirrored this positive momentum. Starting with a 5.3 percent rating for the premiere, the Saturday numbers steadily improved, reaching 7.4 percent with the ninth episode.
Setting and Premise
The storyline unfolds during the 1930s in Gyeongseong, which is known today as Seoul. The narrative centers around a female protagonist who undertakes an undercover assignment lasting one hundred days, and an interpreter who becomes deeply involved with her.
As the plot progresses, themes of espionage and deception intersect with romantic entanglements. The production blends historical elements with suspenseful storytelling.
Cast and Production Details
The series features a prominent lead cast anchored by Kim You Jung and Park Jin Young. Their performances drive the central dynamic between the undercover operative and the entangled interpreter.
Supporting the main leads are cast members Kim Hyun Joo, Lee Moo Saeng, and Jin Sun Kyu. The complete series is structured as a 16-episode run, leaving six episodes remaining after this milestone broadcast.
Broadcast Schedule
Viewers can catch new installments of the series on a weekend schedule. The program airs weekly on Saturdays and Sundays through the tvN network.
With only a handful of episodes left in its broadcast run, audience interest continues to build following the historic ratings breakthrough.
News Overview
The weekend drama 100 Days of Deception achieved a nationwide rating of 10.7 percent for its tenth episode, marking its first time crossing into double digits. The series airs on tvN and stars Kim You Jung and Park Jin Young.
Key facts
- 100 Days of Deception episode 10 aired on November 8, 2026
- Nielsen Korea recorded an average nationwide rating of 10.7 percent with a peak of 12.0 percent
- Seoul metropolitan area averaged 11.7 percent with a peak at 13.1 percent
- Episode 8 set a previous high of 9.8 percent on November 1, 2026
- Sunday episodes rose from 7.6 percent for episode 2
- Saturday episode 1 recorded 5.3 percent and episode 9 recorded 7.4 percent
- The drama is set in 1930s Gyeongseong
- The total length of the drama is 16 episodes
- The show airs on Saturdays and Sundays on tvN