Is 100 Days of Deception Based on a True Story? The Jeam-ri Massacre, Dilkusha & the Real 1932 Behind the Drama
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By Jamie K | October 28, 2026 | K-Drama Explained
Six episodes into 100 Days of Deception, the question in my DMs isn't "will they kiss." It's this: is any of this real?
Short answer: the people are invented. The wounds are not. The village massacre that haunts the resistance, the red-brick house where a foreigner hides secrets, and the year 1932 itself all point straight at real Korean history. And Korean viewers catch those references instantly, because they learned them in school.
I read the Korean interviews and history notes so you don't have to. Here's what's fiction, what's real, and why the gap matters for how you watch the rest of the show.
Is 100 Days of Deception Based on a True Story?
No, not directly. Writer Ryu Bo-ri spent around five years developing an original story about a Gyeongseong pickpocket, Lee Ga-gyeong (Kim Yoo-jung), who becomes a 밀정 (miljeong, undercover agent) inside the Japanese Government-General, and the elite interpreter Kim Tae-woong / Sato Hideo (Park Jin-young) who keeps almost catching her.
Korean outlet Harper's Bazaar Korea spelled it out: the village of Gyeam-ri and vice governor-general Sato Shinichi (Jin Seon-kyu) are fictional. But the article also lists the real history each one is built on. That's the pattern of the whole drama: fictional names, real blueprints.
Gyeam-ri Is Modeled on the 1919 Jeam-ri Massacre
When the resistance talks about Gyeam-ri, Korean viewers hear Jeam-ri (제암리). The names are one syllable apart, and that's no accident.
On April 15, 1919, weeks after the March 1st independence protests, Japanese soldiers rounded up villagers in Jeam-ri (today part of Hwaseong, Gyeonggi Province) inside the village church. They opened fire, then set the church and nearby homes on fire to destroy the evidence. Between roughly 20 and 30 people died, depending on the count.
It became known to the world because Canadian missionary doctor Frank Schofield went to the scene, photographed it, and wrote "The Massacre of Chai-Amm-Ni," published in The Shanghai Gazette on May 27, 1919. That's why Gyeam-ri lands so hard in the drama. For Korean audiences it isn't a plot device. It's a name they know from history class.
Phillip's Correspondent Life Echoes a Real House: Dilkusha
Lee Moo-saeng's Yoo Phillip works in Gyeongseong as a correspondent for an American news agency. And according to Harper's Bazaar Korea, the drama's Western-style house is modeled on Dilkusha (딜쿠샤), a red-brick house in Seoul's Jongno district built in 1923.
It belonged to Albert Wilder Taylor, an American wire-service correspondent who helped get the 1919 Korean Declaration of Independence out to the world. His wife, Mary Linley Taylor, named the house Dilkusha, from a Sanskrit word meaning "palace of the heart's delight." A foreign journalist, a secret-filled house, a story Japan wanted buried: you can see exactly why a spy drama borrowed it.
Why 1932? The Year the Story Is Set Was a Breaking Point
The drama could have picked any year of colonial rule. It picked 1932, and that year means something specific in Korea.
- The Korean Patriotic Organization (한인애국단) was founded in Shanghai in 1931 by Kim Gu, leader of the Provisional Government, to carry out direct action against Japan.
- January 8, 1932: Lee Bong-chang threw a grenade at Emperor Hirohito's procession near Sakuradamon Gate in Tokyo. The emperor survived; Lee was executed later that year.
- April 29, 1932: Yun Bong-gil bombed a Japanese celebration at Hongkou Park in Shanghai, killing a top Japanese general. The Provisional Government was forced out of Shanghai soon after.
The drama's resistance cell, Gukgukdan (구국단, "Save-the-Nation Corps"), isn't a real group. But a small, underfunded cell plotting to hit one senior Japanese official in 1932 is exactly what Korean viewers associate with that year. And Japan really did plant informants inside the independence movement, which is the paranoia driving the episode 4 "loyalty test" where Ga-gyeong gets kidnapped by her own side.
🇰🇷 THE KOREAN SIDE
Korean coverage frames the show as tvN's big swing at Mr. Sunshine territory, about ten years after that drama made colonial-era romance a prestige genre. The headline that summed up the early buzz, from MTN: "김현주에 울고 김유정에 벌써 설레는" ("Crying over Kim Hyun-joo, already fluttering over Kim Yoo-jung"). Kim Hyun-joo's sniper Yoo So-ran, whose daughter was killed by the vice governor-general, is the emotional engine people keep bringing up.
🌍 THE GLOBAL SIDE
Most English recaps treat Gyeam-ri, Phillip, and Gukgukdan as pure fiction and move on to the romance. Subtitles translate the names but can't carry the echo. "Gyeam-ri" reads as a random village unless you know about Jeam-ri.
📊 THE GAP
Korean viewers are watching two stories at once: the spy romance on screen and the real history underneath. International viewers mostly get the first one. The second is where the show's weight comes from.
Why It Matters
Knowing the real history changes how the stakes read. When the resistance says Gyeam-ri, they're invoking the kind of collective punishment that actually happened. When Ga-gyeong walks into the Government-General, she's entering a building Korea later demolished on purpose. And when Sato Hideo hesitates, he's standing at a crossroads Koreans of 1932 really faced. It makes the "romance" feel a lot less safe.
⭐ Early Verdict: Is 100 Days of Deception Worth Watching?
The numbers say yes. Episode 4 hit a series-high 9.0% nationwide (Nielsen Korea, paid households), with a peak above 10%, and ranked No. 1 in its slot. On Netflix it reached No. 4 on the global non-English TV chart for October 12–18, then held at No. 8 for October 19–25 with 2.3 million views.
Korean press praise is loud for Kim Hyun-joo and for Kim Yoo-jung's switch between Korean, Japanese, and English, which she studied with language coaches. Preview-screening reactions called it gripping "for all 70 minutes."
My own reservation: fictional names give the writers freedom, but they also let the show step around the heaviest history when it wants to get back to flirting. The Mr. Sunshine comparison sets a high bar, and the back half has to earn it.
Early Verdict: 4/5. Come for the spy romance, stay because the history underneath is real.
🇰🇷 Culture Decoder: What Foreign Viewers Miss
- 대한독립만세 (Daehan dongnip manse): "Long live Korean independence." When Ga-gyeong shouts it during the kidnapping test, Koreans hear the cry of the 1919 March 1st Movement. Every Korean knows it.
- 이천만 조선인 ("twenty million Joseon people"): Asked who is behind her, Ga-gyeong says twenty million Koreans. That was the stock phrase of the era for "the whole nation," and it's the line that tells the resistance she's genuine.
- 정무총감 (vice governor-general): Sato Shinichi's title was a real post: the No. 2 official of the colonial government. The man is fictional; the power he holds was not.
- 밀정 (miljeong): The word cuts both ways in Korean history. It means an agent for the resistance, and also a Korean who spied for the Japanese police. The title of the drama's whole game is in that one word.
- The textile tycoon: Kim Seung-eok's Joil Textile is fictional, but in 1930s Seoul a Korean-owned textile company was one of the few ways a Korean could get very rich, and very compromised. The real Gyeongseong Spinning Company was founded in 1919.
📍 Visit the Real House Behind the Drama: Dilkusha
Dilkusha's cornerstone, engraved "DILKUSHA 1923." Photo: Grapesurgeon / Wikimedia Commons, CC BY-SA 4.0
To be clear, Dilkusha is not a filming location. It's the real house the drama's house is modeled on, and it's now a free history exhibition hall run by the Seoul Museum of History.
📍 Dilkusha (딜쿠샤)
Where: Haengchon-dong, Jongno-gu, Seoul (on the hill behind Dongnimun / Independence Gate)
Getting there: Subway Line 3, Dongnimun Station Exit 3, about a 10-minute walk uphill
Booking: Reserve through Seoul's public reservation site (yeyak.seoul.go.kr), search "딜쿠샤"
Best time: Late October to November, when the old ginkgo tree beside the house turns gold
Pair it with: Seodaemun Prison History Hall, a short walk away
If you want the heavier side of the story, the Jeam-ri March 1st Movement Memorial Hall stands at the real massacre site in Hwaseong, Gyeonggi Province.
FAQ
Is 100 Days of Deception based on a true story?
No. The main characters and the resistance group Gukgukdan are fictional. But the drama models key elements on real history: the Gyeam-ri massacre on the 1919 Jeam-ri massacre, the Western-style house on Albert Taylor's Dilkusha, and the 1932 setting on the year of Lee Bong-chang's and Yun Bong-gil's attacks.
Was Gukgukdan a real independence group?
No. The closest real-world parallel is the Korean Patriotic Organization (한인애국단), founded by Kim Gu in Shanghai in 1931.
Is Sato Shinichi a real person?
No, he's fictional. His title, vice governor-general (정무총감), was a real position in the colonial government.
📋 Key Details
- Korean title: 100일의 거짓말 ("100 Days of Lies")
- Network: tvN, Saturdays and Sundays at 9:10 PM KST; streaming globally on Netflix
- Episodes: 16
- Cast: Kim Yoo-jung, Park Jin-young, Kim Hyun-joo, Lee Moo-saeng, Jin Seon-kyu
- Director / Writer: Yoo In-sik, Kim Yoon-jin / Ryu Bo-ri
- Setting: Gyeongseong (colonial Seoul), 1932
💬 Jamie's Take
I grew up walking past the spot where the Government-General building used to stand, and nobody had to explain to me why it's gone. That's the knowledge this drama quietly assumes. Once you know Gyeam-ri is Jeam-ri, you can't unknow it. Every flirty scene in the Government-General hallways starts to feel like it's happening on a fault line. Honestly? That's what makes it good.
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