What Does the New Days of Deception Poster Show?
tvN's marketing for 100 Days of Deception has stopped selling the premise and started selling the two people at the center of it. The newest poster puts Park Jinyoung and Kim You Jung in the same frame, inches apart, with nothing to hide behind.
The new poster — the 거짓말 포스터, or "lie poster" — shows Park Jinyoung's Kim Tae Woong closing the distance on Kim You Jung's Lee Ga Kyeong inside a Japanese Government-General office, and it was reported on September 10, 2026 . Tae Woong holds eye contact without blinking; Ga Kyeong looks away and shifts back. The copy reads "한 번만이라도 거짓말 아닌 진짜 이야기를 해봐요" — translated by Soompi as "Just once, tell me a real story that isn't a lie."
Quick Answer: The September 10, 2026 "lie poster" for tvN's 100 Days of Deception shows Park Jinyoung's Kim Tae Woong stepping into Kim You Jung's Lee Ga Kyeong's space in a Government-General office as she looks away. It is the third poster in a three-beat campaign ahead of the October 10 premiere.
One point worth fixing before anything else: the Park Jinyoung here is GOT7's Jinyoung, cast as male lead, not J.Y. Park the JYP Entertainment founder. He plays Kim Tae Woong, who operates under the Japanese name Sato Hideo — an elite interpreter fluent in Korean, Japanese and English, returning to Joseon after ten years away . Kim You Jung plays Lee Ga Kyeong, a Gyeongseong pickpocket recruited by the independence organization 구국단 (Guguk-dan) and planted inside the colonial administration as a trainee interpreter under the alias Geum Seo Hee .
Korean coverage sourced to tvN described the shot as breathless, ultra-close eye contact that resolves nothing — the two are drawn together while still doubting each other, which is the exact tension the drama is built on . The production's own framing is blunter. As tvN's official tagline for the series puts it:
"운명을 건 100일, 가장 치열한 거짓말이 시작된다" — "A fateful 100 days; the fiercest lie begins." Official series tagline, tvN / CJ ENM (source: tvN program page)
The poster arrived roughly a month out from broadcast. 100 Days of Deception is a tvN 20th-anniversary special project and premieres Saturday, October 10, 2026 at 21:10 KST in the Sat–Sun slot . A teaser followed the poster on September 11 . A note on sourcing: tvN hosts the official poster surface, but its program page is a JavaScript-rendered app whose gallery did not resolve to readable text, so the per-poster dates here come from Korean press pickups of the production's releases rather than a first-party timestamp.
Who Are Kim Tae Woong and Lee Ga Kyeong?
Lee Ga Kyeong and Kim Tae Woong are the two leads of 100 Days of Deception, and both are living under identities that are not their own. Kim You Jung plays Lee Ga Kyeong (이가경), described as Gyeongseong's best pickpocket, who is recruited by the independence organisation 구국단 (Guguk-dan) and sent into the Japanese Government-General as a trainee interpreter under the alias Geum Seo Hee (금서희) . Park Jinyoung — GOT7's Jinyoung, acting as male lead, not JYP founder J.Y. Park — plays Kim Tae Woong, who works inside that same building as Sato Hideo .
- Lee Ga Kyeong / Geum Seo Hee (Kim You Jung) — separated from her mother as a child and saving for passage to the United States when Guguk-dan recruits her. Her cover job is trainee interpreter; her real assignment is inside the colonial administration .
- Kim Tae Woong / Sato Hideo (Park Jinyoung) — a newly appointed elite interpreter fluent in Korean, Japanese and English, adopted son of Political Affairs Director-General Sato Shinichi, returning to Joseon after ten years abroad .
- The people around them — Kim Hyun Joo as Yoo So Ran, a Guguk-dan sniper seeking revenge on Sato Shinichi; Lee Moo Saeng as Philip Yoo, Gyeongseong correspondent for a U.S. news agency; Jin Sun Kyu as Sato Shinichi himself .
The premise is a 100-day espionage romance set in 1932 Gyeongseong, and the structure puts the two characters on opposite sides of the same corridor: an independence-movement mole and the interpreter whose adoptive father runs the political affairs bureau she is spying on. Translation work is the mechanism — both leads make their living turning one language into another, which is also the job description of a liar. tvN's official tagline for the series, "운명을 건 100일, 가장 치열한 거짓말이 시작된다" ("A fateful 100 days — the fiercest lie begins"), frames the count of days as the clock on both the mission and the relationship .
What the poster campaign has added is the emotional reading of that setup. Korean coverage sourced to tvN's production side frames the pair as two people growing closer while still doubting each other — entangled by lies that neither wants exposed and neither wants to believe . The "좋아해요🤞" teaser, one of four official clips on tvN's video page and running 0:32, stages that ambiguity plainly: Ga Kyeong tells Tae Woong she liked him from the start, with her fingers crossed behind her back . It is the clearest statement so far of how the series intends to handle feelings that begin as cover and stop being cover — the viewer is told the confession is a lie and is still expected to weigh whether it is also true.
Writer Ryu Bo Ri (Do You Like Brahms?) is working from an original screenplay with no webtoon or novel source, directed by Yoo In Shik of Dr. Romantic and Extraordinary Attorney Woo . For both leads the casting is notable on its own terms: Kim You Jung and Kim Hyun Joo are each making a first tvN drama appearance .
The Poster Rollout So Far: Infiltration, Gyeongseong Station and the Lie Poster
tvN has released the drama's key art in three staged beats, each narrowing the frame from mission to setting to the two leads' emotional proximity. The sequence runs from the 잠입 (Infiltration) poster on August 28, 2026, to the 경성역 (Gyeongseong Station) poster on September 4, to the 거짓말 (Lie) poster on September 10 . All three are currently listed as representative images on the official tvN program page, with the newest flagged "NEW 거짓말 포스터" . One caveat worth stating plainly: the per-poster release dates come from Korean press pickups of the production's press releases, not from a first-party tvN page that timestamps each drop.
The Infiltration poster is a Kim You Jung solo shot. It shows Lee Ga Kyeong setting foot inside the Japanese Government-General building for the first time and turning toward camera, her expression mixing wariness with resolve — a preview of the mission rather than of the romance .
The Gyeongseong Station poster is the first two-hander. Ga Kyeong and Kim Tae Woong cross paths on a crowded station platform before she assumes her false identity, exchanging a glance that reads equally as interest or suspicion. Its copy — "1932년 경성, 가장 위험한 거짓말이 시작된다," or "In 1932 Gyeongseong, the most dangerous lie begins" — is what fixed 1932 as the story's immediate historical frame and made the station the opening location where the characters' relationships begin .
The Lie poster moves the pair indoors and drops every other figure from the frame. It is a tonal escalation, not an information release: no new casting, no schedule change, no episode count. What it adds is the copy line "한 번만이라도 거짓말 아닌 진짜 이야기를 해봐요" — "Just once, tell me something real instead of a lie" . Read in order, the three posters track a clean progression: one character's mission, then two characters meeting, then two characters doubting each other at close range.
| Poster | Reported date | Framing | Copy line |
|---|---|---|---|
| 잠입 / Infiltration | Aug 28, 2026 | Kim You Jung solo, entering the Government-General building | — |
| 경성역 / Gyeongseong Station | Sept 4, 2026 | Two-shot, crowded station platform | "1932 Gyeongseong, the most dangerous lie begins" |
| 거짓말 / Lie | Sept 10, 2026 | Two-shot, empty office interior | "Just once, tell me something real instead of a lie" |
A teaser followed on September 11. tvN's official video page currently lists four clips: a D-100 teaser (0:23), an Infiltration teaser (0:35), a "좋아해요🤞" teaser (0:32) in which Ga Kyeong tells Tae Woong she liked him from the start while crossing her fingers behind her back, and a 9:12 script-reading making-of billed as "50 days before first broadcast" . Fans tracking the rollout should watch that video page rather than aggregator reposts, since it is the surface tvN updates first. Sources: tvN program page, tvN video page, Sports Khan, Maxmovie and Soompi.
When and Where to Watch Days of Deception
100 Days of Deception premieres Saturday, October 10, 2026 at 21:10 KST on tvN, airing in the Saturday–Sunday prime slot . It takes over the slot from Four Hands (포핸즈) and is billed as a tvN 20th-anniversary special planning project, the network's designation for a title it positions at the top of its yearly slate . Domestic streaming runs on TVING, and tvN's official materials carry TVING messaging rather than any other platform .
The production line-up is the clearest signal of how the network is treating it. Yoo In Shik directs — the director of Dr. Romantic, which peaked at a 27.6% rating, and Extraordinary Attorney Woo — with Kim Yoon Jin credited as co-director in at least one outlet's rundown . Ryu Bo Ri, who wrote Do You Like Brahms?, is the screenwriter, and the script is original: there is no webtoon or novel source behind it. Studio Dragon and Nangman Crew produce .
Around Kim You Jung and Park Jinyoung, Yonhap's August 27 brief named Kim Hyun Joo, Lee Moo Saeng and Jin Sun Kyu as the other principal cast . Kim Hyun Joo plays Yoo So Ran, a Guguk-dan sniper pursuing revenge against Sato Shinichi; Lee Moo Saeng plays Philip Yoo, Gyeongseong correspondent for a U.S. news agency; Jin Sun Kyu plays Sato Shinichi himself, which puts him opposite his own adopted son in the plot. Kim In Kwon, Lee Ki Young, Choi Deok Moon and Seo Jung Yeon fill out the supporting roster. Both Kim You Jung and Kim Hyun Joo are appearing in a tvN drama for the first time .
International viewers have a gap to watch. Third-party coverage reports a Netflix release for global audiences, but no official Netflix title page confirms it — an attempted Netflix URL returned HTTP 404, and tvN's own materials name only TVING . The same caution applies to the run length: a 16-episode count and a November 29, 2026 finale circulate in secondary coverage that flags dates as subject to change . Until a platform lists the title on its own service page, treat the October 10 tvN premiere and TVING domestic streaming as the only fixed points.
Where Fans Can Experience It in Seoul
Fans in Seoul have one announced offline tie-in for 100 Days of Deception: a special exhibition titled «100일의 거짓말» 특별전: 1932년 경성, 밀정이 되다 ("1932 Gyeongseong, Becoming a Mole"), presented with the Seoul Museum of History and dated Aug. 14 to Dec. 31, 2026 in its online component. One caveat matters before anyone books a trip: the exhibition surfaced through tvN's tie-in page and secondary coverage, not through the museum's own published schedule, so treat it as a broadcaster-announced program rather than a confirmed museum listing until the museum posts it directly.
That distinction has practical consequences. No visiting hours, admission price, gallery floor or reservation method has appeared in official materials as of the September 10 poster release . Anyone planning a visit around the drama's Oct. 10 premiere should confirm the dates on the museum's own channels first, and treat travel built solely around this exhibit as provisional.
The reliably available material is online. tvN's official program page collects the campaign's video assets, and its video section currently lists four clips: a D-100 teaser (0:23), an Infiltration teaser (0:35), a "좋아해요🤞" teaser (0:32), and a 9-minute-12-second script-reading making-of billed as "50 days before first broadcast" . The same page carries the poster gallery and the production's official Korean tagline. The OST section, by contrast, is still marked as in preparation — no track list, artist credits or release schedule has been posted .
For fans who want the physical settings rather than an exhibition, the filming locations are the more durable option. Principal photography began in March 2026, following the first script reading on Feb. 6, 2026, and Nonsan Sunshine Land in South Chungcheong served as a key period location — the same standing set used for Mr. Sunshine . It is roughly a two-hour trip south of Seoul rather than a city stop, and it operates as a general period-drama attraction, so it is open regardless of whether the tvN exhibit materializes.
Deception or Lies? Which English Title to Search
Both English titles point to the same tvN drama. The Korean title is 100일의 거짓말, and tvN's own program URL uses the English slug 100-Days-of-Deception , which is also the form used in English-language coverage such as Soompi's write-up of the September 10, 2026 poster . Wikipedia and MyDramaList index it as 100 Days of Lies, a more literal rendering of 거짓말 . Neither is wrong; there is simply no single licensed English title in circulation yet.
Cast romanization splits the same way, which matters if a search returns nothing:
- Park Jinyoung / Park Jin-young / Jinyoung — the GOT7 member acting as male lead. Searching "Park Jin-young" alone tends to surface J.Y. Park, the JYP Entertainment founder, who is not involved in this production.
- Kim You Jung / Kim You-jung / Kim Yoo-jung — the female lead, in her first tvN drama .
- Lee Ga Kyeong / Lee Ga-kyung (이가경) and her alias Geum Seo Hee / Keum Seo-hee (금서희); Kim Tae Woong / Kim Tae-ung and the Japanese alias Sato Hideo.
The reliable shortcut is the Korean string. Searching 100일의 거짓말 returns tvN's first-party program page and video page — including the D-100 teaser, the Infiltration teaser and the "좋아해요🤞" clip — plus the Korean press pickups that carried each poster drop . Either English title will find the same coverage in aggregate, but the Korean title is what matches tvN's official assets exactly.
Practical takeaway: bookmark tvN's program page and watch the October 10, 2026, 21:10 KST premiere date rather than any one English spelling . Domestic streaming is on TVING and confirmed in tvN's materials; global Netflix availability, the 16-episode count and the reported November 29, 2026 finale still come from third-party coverage rather than an official title page, so treat those three items as provisional until a first-party listing appears .
Frequently asked questions
What is tvN's Days of Deception about?
100 Days of Deception is a 100-day espionage romance set in 1932 Gyeongseong, in which an independence-movement mole infiltrates the Japanese Government-General as a trainee interpreter and works opposite the elite interpreter she is assigned to deceive . Lee Ga Kyeong, Gyeongseong's best pickpocket, is recruited by the independence organization Guguk-dan and enters the colonial administration under the alias Geum Seo Hee, while Kim Tae Woong — raised in Japan as Sato Hideo — returns to Joseon after ten years to take an interpreter post . tvN's official tagline frames it as "운명을 건 100일, 가장 치열한 거짓말이 시작된다" — "A fateful 100 days: the fiercest lie begins" . It is an original screenplay with no webtoon or novel source, written by Ryu Bo Ri and directed by Yoo In Shik, with Studio Dragon and Nangman Crew producing .
When does Days of Deception premiere?
100 Days of Deception premieres Saturday, October 10, 2026 at 21:10 KST on tvN, airing in the Saturday–Sunday slot and succeeding Four Hands (포핸즈) . tvN bills it as a 20th-anniversary special project, which explains the unusually long promotional runway — a D-100 teaser, a 9-minute-12-second script-reading making-of billed as "50 days before first broadcast," and a three-poster sequence running from August 28 to September 10, 2026 . Domestic streaming is on TVING. A 16-episode order and a November 29, 2026 finale have been reported by secondary coverage, but neither appears on a first-party listing, so treat both as provisional .
Who plays the leads in Days of Deception?
Park Jinyoung of GOT7 plays Kim Tae Woong, who lives in Gyeongseong under the Japanese name Sato Hideo, and Kim You Jung plays Lee Ga Kyeong, the pickpocket-turned-mole who enters the Government-General as Geum Seo Hee . This is GOT7's Jinyoung, not J.Y. Park the JYP Entertainment founder, whose name is romanized almost identically. Yonhap's August 27, 2026 brief listed the principal cast as Kim You Jung, Park Jinyoung, Kim Hyun Joo, Lee Moo Saeng and Jin Sun Kyu . Kim Hyun Joo plays Guguk-dan sniper Yoo So Ran, Lee Moo Saeng plays Philip Yoo, a Gyeongseong correspondent for a U.S. news agency, and Jin Sun Kyu plays Political Affairs Director-General Sato Shinichi, Tae Woong's adoptive father. Kim In Kwon, Lee Ki Young, Choi Deok Moon and Seo Jung Yeon fill out the supporting cast; both Kim You Jung and Kim Hyun Joo are appearing in a tvN drama for the first time .
Is it called '100 Days of Deception' or '100 Days of Lies'?
Both titles refer to the same tvN drama. The Korean title is 100일의 거짓말, which translates literally as "100 days of lies," and several English-language databases index it that way . tvN's own program URL uses the slug 100-Days-of-Deception, and Soompi's English coverage follows the same spelling, so "Deception" is the form most likely to match official and international press results . If a search returns thin results under one spelling, searching the Korean title alongside the October 10, 2026 premiere date is the most reliable way to reach first-party material .
Where can fans see Days of Deception content in Seoul?
tvN has announced a tie-in special exhibition, «100일의 거짓말» 특별전: 1932년 경성, 밀정이 되다, associated with the Seoul Museum of History and carrying an online component dated August 14 to December 31, 2026 . The exhibition did not appear on the museum's own published schedule at the time of writing, so confirm dates and admission directly with the venue before travelling for it. The reliably available option is online: tvN's program page hosts the poster gallery and four official clips — a 23-second D-100 teaser, a 35-second Infiltration teaser, a 32-second "좋아해요🤞" teaser, and the 9-minute-12-second script-reading making-of . Filming locations included Nonsan Sunshine Land in South Chungcheong, the period set previously used for Mr. Sunshine, which is open to visitors year-round .
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This article was written using information collected and analyzed by NAMANE's in-house K-pop research AI engine. We use AI technology to bring you faster, broader coverage, and in the process some details may occasionally differ from the latest facts. For important information such as dates, venues, and prices, please double-check with official sources.
