A pickpocket saving every coin for a ticket to America. A resistance sniper with a job offer she can’t refuse. And 100 days undercover inside the Japanese Government-General of Korea. tvN’s 100 Days of Deception drops you straight onto a crowded 1932 Gyeongseong Station platform, and the world it builds is so detailed that you’ll want to know how much of it you can actually walk through.

Good news: quite a lot. The drama’s main set is a real place you can visit in Nonsan, and the colonial-era Seoul it recreates still has a few survivors standing today. Here’s everything confirmed so far.

100 Days of Deception at a Glance (TL;DR)

  • Korean title: 100일의 거짓말 (literally “100 Days of Lies”)
  • Premiere: October 10, 2026 on tvN (Saturdays and Sundays, 9:10 PM KST), finale scheduled for November 29
  • Where to watch: Netflix (worldwide) and TVING (Korea)
  • Episodes: 16
  • Cast: Kim You-jung (Lee Ga-kyeong), Park Jinyoung of GOT7 (Kim Tae-woong / Sato Hideo), Kim Hyun-joo (Yoo So-ran), Lee Mu-saeng (Yoo Philip), Jin Sun-kyu (Sato Shinichi)
  • Directors / writer: Yoo In-shik (Extraordinary Attorney Woo, Dr. Romantic) and Kim Yoon-jin / Ryu Bo-ri (Do You Like Brahms?), an original script
  • Filming period: March to September 2026
  • Confirmed filming location: Sunshine Land, Nonsan (South Chungcheong Province)
  • Story setting: Gyeongseong (today’s Seoul), 1932

What Is 100 Days of Deception About?

Lee Ga-kyeong (Kim You-jung) is the best pickpocket in Gyeongseong, and she has one goal: save enough money to leave for America. Then she lifts the wrong bag at Gyeongseong Station. It belongs to Yoo So-ran (Kim Hyun-joo), a sniper with the anti-Japanese resistance group Gugukdan, and it’s full of bullets.

So-ran makes her an offer. Ga-kyeong takes a false identity and slips into the Japanese Government-General of Korea as an interpreter trainee for 100 days, where the resistance is planning to assassinate Sato Shinichi (Jin Sun-kyu), the newly appointed Inspector-General, the second-highest official in the colonial administration. There she meets Kim Tae-woong (Park Jinyoung), Sato’s adopted son and a newly appointed elite interpreter who speaks English, Japanese and Korean, according to Soompi.

The drama is tvN’s 20th-anniversary special project, and episode 1 opened at 5.3% nationwide (7.2% peak), first in its time slot, per Hankook Ilbo.

When Was 100 Days of Deception Filmed?

The first script reading took place on February 6, 2026, and principal photography began in March, per Wikipedia. Korean wiki Namuwiki lists a filming window of March 9 to September 21, 2026, which means the team was still shooting less than three weeks before the premiere.

Recreating 1932 Seoul was the biggest challenge. “Because so few original places or buildings remain, it presented a significant challenge for our art department,” director Yoo In-shik said at the press conference, as reported by The Korea Times. With so little of 1932 Seoul left standing, the production leaned on period sets, and the biggest of them is a place you can visit.

New to K-drama travel? Start with our K-Drama Filming Locations hub.

1. Sunshine Land, Nonsan: The Drama’s Gyeongseong

This is the big one. Nonsan City confirmed in March 2026 that Sunshine Land would be a main backdrop (주요 배경지) for 100 Days of Deception, and signed a cooperation agreement with SBS A&T and the production company to promote it, according to TJB via Daum News.

If the streets look familiar, there’s a reason. Sunshine Land’s Sunshine Studio is the open set built for Mr. Sunshine (2018), the drama Korean media keep comparing this one to. It covers roughly 20,000 square meters (about 6,000 pyeong) with modern-style buildings, tiled hanok, thatched houses and Japanese-style houses, plus period spots like the Glory Hotel café and Hansung Electric, per the ktriptips listing. Next door, Sunshine Land also runs the 1950 Studio (a Korean War-era set) and a military experience hall, per the Chungnam tourism site.

Sunshine Land is also being upgraded with the drama in mind. In April 2026, a 12 billion won project called “Nonsan Time-Scape <Gyeongseong>” was approved to turn it into a K-drama and modern-history experience site, with a planned “Gyeongseong Station time travel” zone, an immersive performance space and prop rentals, according to Twig24. No opening date for the new zones has been announced yet.

What to do there:

  • Rent a period outfit at the costume boutique (the costumes lean early-1900s, Mr. Sunshine style, but they fit the drama’s mood) and wander the streets like an undercover interpreter trainee
  • Have a coffee at the Glory Hotel
  • Look for streets that feel familiar. Exact scene-by-scene matches haven’t been published yet, and this post will add them as fans identify them

Visitor info: Bonghwang-ro, Yeonmu-eup, Nonsan (Sunshine Studio is listed at no. 90, Sunshine Land at no. 102). Closed every Thursday. Listings disagree on the details: ktriptips gives 10:00 to 18:00 and 10,000 won for adults at Sunshine Studio, while the Chungnam tourism site lists 10:00 to 17:30 and free entry to the 1950 Studio. Parking is free. With the Gyeongseong upgrade underway, check current hours and prices before you go.

Getting there: Take a train from Yongsan to Nonsan Station. KTX takes about 1.5 to 1.75 hours (around 25,500 won), but only a handful of KTX trains stop there each day, per this timetable, so ITX or Mugunghwa trains are often the easier pick. From Nonsan Station, take a taxi to Yeonmu-eup.

Can you visit? Yes. This is the one confirmed filming location you can walk through today.

Nonsan / Sunshine Land day tour

Planning a full day in Nonsan? See our guide to things to do in Nonsan, home of the Mr. Sunshine set

2. Gyeongseong Station: Where It All Begins

Episode 1 opens on a packed Gyeongseong Station platform. Police line the area because Sato Shinichi is arriving, and Ga-kyeong is working the crowd when she steals So-ran’s bag, per Hankook Ilbo. The production released stills of this “1932 Gyeongseong Station” scene in August, per iMBC, but hasn’t said where the platform was filmed.

The real station, though, still stands in Seoul. The domed red-brick building opened in 1925 as Gyeongseong Station, was renamed Seoul Station in 1947, and served trains until 2004. Today it’s Culture Station Seoul 284, a free exhibition and arts space next to the modern Seoul Station, according to The Soul of Seoul. Stand in front of it and you’re looking at the actual building Ga-kyeong would have known in 1932.

Visitor info: 1 Tongil-ro, Jung-gu, Seoul. Usually open Tuesday to Sunday until 19:00 and free to enter, but opening times vary by exhibition and the building closes between shows, so check seoul284.org first.

Getting there: Seoul Station (Lines 1 and 4, Airport Railroad). Turn right as you face the main station.

Can you visit? Yes, as the real-life Gyeongseong Station. Not a confirmed filming location.

Domed red-brick Culture Station Seoul 284, the former Gyeongseong Station
Culture Station Seoul 284, built in 1925 as Gyeongseong Station

3. The Government-General of Korea: The Building That No Longer Exists

Most of Ga-kyeong’s 100 days take place inside the Japanese Government-General of Korea, where she trains as an interpreter and Tae-woong works. The drama’s teaser recreated the building’s exterior, per Money Today, and the October 3 special 100 Days of Deception: Secret Documents was filmed on the drama’s actual set, with the cast hunting for a hidden document inside the Government-General, per Soompi. The production hasn’t said where that set is.

You won’t find the real building in Seoul anymore. The Government-General Building stood in front of Gyeongbokgung Palace, deliberately blocking it, and was demolished starting on Liberation Day, August 15, 1995, with the work finished in December 1996, according to the Encyclopedia of Korean Culture. Gyeongbokgung’s restored Heungnyemun Gate area now sits where it stood.

Want to see what’s left? The top of the central dome and other pieces of the building have been displayed since 1998 in an outdoor park at the Independence Hall of Korea in Cheonan, per the same encyclopedia entry. Cheonan lies between Seoul and Nonsan, so it can work as a stop on the way, though seeing both in one day makes for a long day.

Can you visit? The building is gone, but you can visit its former site at Gyeongbokgung and its remains at the Independence Hall in Cheonan.

Traditional architecture at Gyeongbokgung Palace in Seoul
Gyeongbokgung Palace is one of the most recognizable historical K-drama filming locations in Seoul.

4. Seoul Museum of History: The Drama’s Spy Exhibition

Before the premiere, tvN teamed up with the Seoul Museum of History for a special exhibition called “Gyeongseong 1932, Becoming a Spy” (1932년 경성, 밀정이 되다). Visitors followed Ga-kyeong’s point of view and completed spy missions, and some of the props and furniture used in actual filming were reused in the exhibition spaces, according to Wikitree.

The first-floor exhibition closed on September 27, but the third-floor audio guide narrated by the cast, with a stamp tour of related artifacts in the permanent gallery, was scheduled to run through November 29, 2026, the same day as the drama’s finale, per Wikitree. Confirm with the museum before you go.

Visitor info: 55 Saemunan-ro, Jongno-gu. Tuesday to Sunday, 9:00 to 18:00 (until 21:00 on Fridays), closed Mondays. Free entry, per Wikipedia. Gwanghwamun Station (Line 5), Exit 7 or 8, about a 7-minute walk.

Can you visit? Yes, through November 29.

A One-Day “Gyeongseong 1932” Route in Seoul

Not making it to Nonsan? Here’s how to trace the drama’s world in Seoul in one day:

  1. 11:00 AM: Culture Station Seoul 284, the real Gyeongseong Station (check that an exhibition is open)
  2. 12:00 PM: Lunch, then subway to Gwanghwamun
  3. 1:30 PM: Seoul Museum of History for the cast-narrated audio guide (through Nov 29)
  4. 3:30 PM: Walk 10 minutes to Gyeongbokgung Palace and stand where the Government-General Building once blocked the view
  5. Optional: Add Seodaemun Prison History Hall (Dongnimmun Station, Line 3), where many real independence activists of the era were imprisoned

Looking for more drama spots in the capital? See the best K-drama filming locations in Seoul.

FAQ

Where was 100 Days of Deception filmed?

The confirmed main location is Sunshine Land in Nonsan, South Chungcheong Province, the open set originally built for Mr. Sunshine. Filming ran from March to September 2026. Other sets, including the Government-General interiors, haven’t been named yet.

Is 100 Days of Deception filmed at the Mr. Sunshine set?

Yes. Sunshine Land in Nonsan, home of the Mr. Sunshine set, was confirmed as a main backdrop for the drama.

Is Gyeongseong Station a real place?

Yes. Gyeongseong Station opened in 1925 and still stands in Seoul as Culture Station Seoul 284, next to the modern Seoul Station. The drama’s station scenes weren’t confirmed to be filmed there.

Where can I watch 100 Days of Deception?

On Netflix worldwide and on TVING in Korea. It airs on tvN every Saturday and Sunday at 9:10 PM KST.

How many episodes does 100 Days of Deception have?

16 episodes, from October 10 to November 29, 2026.

Is 100 Days of Deception based on a true story?

No. It’s an original script by Ryu Bo-ri with fictional lead characters, but the setting (1932 Gyeongseong under Japanese rule, the Government-General and the independence movement) is real history.

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