“100 Days of Deception” is gaining momentum quickly. The tvN historical spy romance rose to a 7.6% average nationwide rating for Episode 2, broadcast October 11, 2026, according to Nielsen Korea figures reported by Soompi. That is a notable increase from the premiere’s 5.3% average nationwide rating on October 10.
The early numbers give the series a strong opening story: viewers are returning for a drama that mixes undercover espionage, a dangerous romance and the painful history of Korea under Japanese colonial rule. But ratings alone cannot tell us exactly why people are watching—or prove that every viewer is “obsessed.” The more useful question is what the show has put on screen that could keep its audience coming back.
Episode 2 reached 7.6% nationwide
According to Soompi’s October 12 report citing Nielsen Korea, the October 11 episode averaged 7.6% nationwide and ranked first in its time slot among cable channels. The premiere, which aired October 10, recorded an average nationwide rating of 5.3%, according to Soompi’s earlier report. That is an increase of about 2.3 percentage points from one episode to the next.
These figures refer to South Korean television ratings, not a percentage of Netflix viewers in the United States or worldwide. They should also not be confused with streaming chart positions, online search volume or social-media engagement. Each measures a different kind of audience activity.
Why the story may be connecting with viewers
The premise gives the drama more than one engine. Lee Ga-kyung enters the Japanese colonial administration under an assumed identity, while Park Jin-young’s Sato Hideo occupies a complicated position inside the system she is trying to penetrate. Their growing connection creates an immediate conflict: trust may help them survive, but revealing the truth could destroy the mission.
That setup gives each romantic moment a second meaning. A conversation can also be an interrogation; a gesture can be a test; and a character’s silence may be a tactical decision rather than a sign of indifference. For a spy romance, that tension can make the relationship feel consequential instead of decorative.
The historical setting raises the stakes
The series is set in 1932 Gyeongseong, the former name for Seoul, during Japan’s 1910–1945 colonial rule of Korea. The Korea Times reported that the story follows a pickpocket who infiltrates the Japanese Government-General of Korea and encounters an elite interpreter in enemy territory. The setting makes the characters’ private choices part of a much larger struggle over identity, power and independence.
That historical context is important to the show’s emotional weight. The risks are not limited to whether two characters will admit their feelings. The undercover mission places them inside an oppressive political structure, where a mistake could endanger a network of people working for Korean independence. Viewers who respond to historical dramas often look for this balance between intimate character choices and the broader forces shaping them.
What the ratings do—and do not—tell us
A rise from 5.3% to 7.6% is a promising early signal for a new weekend drama. It suggests that the second broadcast drew a larger measured audience than the premiere. It does not, by itself, identify the reason for that growth. Word of mouth, scheduling, competition, promotion and the episode’s own storytelling can all affect viewing figures.
It is also too early to call the series a guaranteed long-term hit. The next episodes will show whether the drama can sustain its audience while developing the spy plot and the relationships at its center. A strong opening is an invitation to keep watching, not a promise about the finale.
Where to watch and what to look for next
Netflix lists 100 Days of Deception as a 2026 Korean period drama starring Kim You-jung, Park Jin-young and Kim Hyun-joo. Availability and episode timing can vary by market, so viewers should check the title’s local Netflix listing for the schedule in their country.
For the next episode, the biggest questions are whether Ga-kyung can maintain her cover, how much Hideo understands about the people around him, and whether the mission will force the leads to choose between personal attachment and their responsibilities. Those unresolved tensions—not a rating number alone—will determine whether the drama can turn an encouraging start into sustained interest.
Quick answer
Why did 100 Days of Deception Episode 2 ratings rise to 7.6%? Nielsen Korea figures reported by Soompi put Episode 2 at a 7.6% average nationwide rating on October 11, up from 5.3% for the October 10 premiere. The series combines a high-risk undercover mission, a conflicted central romance and a 1932 colonial-era setting. The ratings confirm early growth, but they do not prove a single cause for the increase.
Frequently asked questions
What was the Episode 2 rating for 100 Days of Deception?
Episode 2 averaged 7.6% nationwide in South Korea, according to Nielsen Korea figures reported by Soompi on October 12, 2026.
What was the premiere rating?
The October 10 premiere recorded an average nationwide rating of 5.3%, according to Soompi’s report published October 11, 2026.
Does 7.6% mean 7.6% of Netflix viewers watched?
No. This is a South Korean television audience rating reported for the tvN broadcast. It is not a Netflix global viewing percentage.
Who stars in 100 Days of Deception?
The main cast includes Kim You-jung, Park Jin-young and Kim Hyun-joo, with Lee Mu-saeng and other supporting cast members.
Where can I watch 100 Days of Deception?
Netflix lists the series on its official title page. Check your local Netflix catalog for availability and episode timing.
Sources
- Soompi: Episode 2 ratings rise to 7.6%
- Soompi: Premiere ratings report
- The Korea Times: Drama premise and historical setting
- Netflix: Official series listing
By Shivam Das
