In 100 Days of Deception Episode 4, Gakyeong passes the Gugukdan’s loyalty test, but a new operation against Sato raises a troubling question: who else knows their plans?
Spoiler warning: This post covers the main plot and final scene of 100 Days of Deception Episode 4.
Lee Gakyeong (Lee Ga-kyeong) shouts “Long live Korean independence!” with a gun pointed at her.
Has she finally awakened to the independence cause? No. She just wanted to end the little play her captors were putting on. But once this test is over, a lie comes out that Gakyeong herself knows nothing about: the promise that if she works for three months, they’ll send her to America. And while the Gugukdan is busy testing her loyalty, Sato is setting a trap for them.
100 Days of Deception Episode 4 Recap: The Lies of Those Who Test Trust
An Interrogation Room Too Clumsy to Be Jongno Police Station
On her way home from her first mission, Gakyeong feels a gun barrel against her back. A hood is pulled over her head, and when she opens her eyes, she’s in a cramped, dark room lit by a single bare bulb. A man with broken Korean tells her this is Jongno Police Station, the place where one Korean dies every day.
Gakyeong insists she’s just a trainee interpreter at the Government-General, but the beating keeps coming. Another man brings up Philip in Japanese. What did she get in exchange for becoming a spy? Name the people behind her, and they’ll keep that same promise for her. And what would someone like her even get out of independence?
At the last moment, with a gun to her head, Gakyeong answers. If anyone is behind her, it’s twenty million Koreans. Then she shouts, “Long live Korean independence!” The man pulls the trigger, but nothing fires. Gakyeong turns the question around: who’s behind you?
The person who walks through the door is Yu Soran (Yu So-ran). The whole thing was a loyalty test set up by Philip. But Gakyeong had already figured it out. It was nothing like what she’d heard from people crippled by torture at the real Jongno Police Station. There was a club right in front of them that they never used, and the streetcar she’d heard on the way didn’t fit the route to Jongno Police Station. Most of all, why blindfold her if they were taking her to an actual police station?
Gakyeong snaps at them. Next time, put on a better show. If you don’t trust me, how am I supposed to trust you and work with you? And don’t read anything into “Long live Korean independence,” she says. That was just to get them to wrap up their little play.
There Was Never a Way to Get to America
When Gakyeong heads for the door, Philip raises his gun again. This time Soran aims hers at Philip and steps between them. After making him lower it, Soran tells Gakyeong who Seohui was: the name of her daughter, killed by the Administrative Superintendent. Then she asks for help. I need you, she says.
But what Soran tells Philip when Gakyeong isn’t there is different. Gakyeong wants America so badly that she won’t betray them. But she must never find out that there was never any way to get her to America. Gakyeong passed the test, but the most important term of the deal she accepted was a lie.
Hideo Is Searching for His Mother Too
At Sato’s house, Hideo, Sato’s adopted son and an interpreter at the Government-General, struggles just to change his clothes. The gunshot wound from Episode 2 still hasn’t healed. His younger sister Hanako pesters him to teach her Korean once she’s learned her lowercase English letters. Her mother was Korean.
Hideo asks Yanagi, who keeps the household, for his mother’s name. Since returning to Gyeongseong, he has been searching for her. The pawn ticket his mother hid in her sewing box when he was a boy is the only lead he has. The scrap of paper Gakyeong refuses to give back is, for Hideo, a path that might lead to his mother.
What Sato Wants to Crush Is Hope
Sato berates Police Bureau chief Fukuda for failing to catch even one fugitive. It was only three months ago that Lee Bong-chang went after the Japanese king, and this is the best they can do? Then he brings up 1919. There is one thing that can’t be broken by swords, guns, or torture: hope. A bullet kills one person and it’s over, but hope gets passed down to their children. So it has to be crushed at the root.
People Who Can’t Ride the Elevator
The next day, Gakyeong limps into work. Philip warns her that if she puts “that woman” in danger, she won’t be safe either. Gakyeong shoots back: so the one she’s not supposed to endanger isn’t the Gugukdan, it’s the ajumma? (Ajumma is what she calls Soran, a casual Korean word for a middle-aged woman.)
At the Government-General, Hideo asks when she’s going to give the pawn ticket back. Gakyeong stalls: isn’t the ticket useless until he finds the pawnshop? On her way back from an errand to the fourth floor, her sprained ankle won’t let her get down the stairs. She asks to take the elevator, but the answer comes back: Koreans aren’t allowed.
Gakyeong refuses when Hideo offers his arm, but eventually asks for help. This time Hideo plays hard to get. When you ask for something, you say “please,” he tells her, in English. They bicker the whole way, but he takes her to a clinic. It’s the first time in her life Gakyeong has seen a doctor just because she was hurt.
Of All Places, a Gugukdan Clinic
The doctor who treats her at the Korean medicine clinic is Gwak Unhak (Gwak Un-hak), a member of the Gugukdan. The two pretend not to know each other. Gakyeong complains that it’s not just her ankle, her whole body hurts. She says it right to the face of a man who knows exactly what was done to her the day before.
She’s told to sit with the acupuncture needles in for twenty minutes, but she pulls them out herself. Hideo sits her back down, takes off her shoe, and wraps her ankle. He learned it at the military academy, he says. When she asks why he became an interpreter instead of a soldier, he doesn’t answer. Gakyeong thanks him, and she means it.
Hideo brings up her confession from the day before. If she really meant it when she said she liked him, he asks her not to let Philip find out. He needs to stay on good terms with Philip. Then he notices the bruises on her wrists and ankles. Does he hit you?
Philip’s Rough Act, and Hideo’s Misunderstanding
Just then, Philip appears and calls her “honey.” When Soran and the others approach in the distance, he wraps his arm around Gakyeong’s waist. Soran catches on from afar and turns away. When Philip asks if he can take her, Gakyeong says to Hideo: “Please.”
Philip grabs her roughly by the waist and drags her off. Watching Gakyeong being hauled away, still in pain, Hideo spits out a curse. In his hand is the ointment he meant to give her.
Philip, meanwhile, suspects Gakyeong of leading Hideo to a Gugukdan hideout. Just as she protests that she had no idea this was their den, she spots Hideo following them. Gakyeong buries her face in Philip’s chest. Hideo hands her the ointment and looks at the wounds on her wrist once more. His suspicion becomes certainty.
An Awards Ceremony, or a Report?
The Gugukdan gets a new chance at Sato. With the Governor-General away, the Administrative Superintendent himself will present an award to a sixteen-year-old girl who won at the Joseon Art Exhibition. The schedule Gakyeong copied also lists a speech. Soran orders that Gakyeong must not be told about the operation under any circumstances.
That night, while dressing her wounds, Soran asks whether she heard anything else about Sato’s speech. Gakyeong remembers some employees grumbling in the hallway. At seven o’clock that same evening, the editing department is scheduled to brief the Administrative Superintendent on the compilation of Korean history.
The Gugukdan’s hideout. Soran suspects Sato may be at the Government-General instead of the ceremony. But the winning student, Jongno Police Station, and the venue, the Keijo Imperial University library (Keijo was the Japanese name for Gyeongseong), all expect the Superintendent to attend. Information confirmed from so many directions seems more reliable.
Gakyeong’s Phone Call, and Hideo at the Door
The day of the operation. The Gugukdan takes up positions along Sato’s route. Soran waits with a sniper rifle on the second floor of a fabric shop, and Han Cheolyong (Han Cheol-yong), an armed Gugukdan fighter, plans to ride up on a bicycle and shoot Sato in his car. Jang Jeongyeop (Jang Jeong-yeop), a Gugukdan member who works as an assistant at the clinic, drops the cargo off a truck to block the road.
At the Government-General, Gakyeong can’t shake the way Soran kept checking on that schedule. She has the switchboard connect her to the editing department to confirm the timing, then calls Philip. When he hears she’s calling from the Government-General, he’s horrified. Has she lost her mind? Gakyeong tells him in English: tonight the Superintendent isn’t giving a speech, he’s getting a briefing. When she asks if something is happening at seven tonight, Philip cuts her off. Didn’t they agree she wouldn’t ask questions? She hangs up and walks out the door, and Hideo is standing right there.
A Comrade Tied Up in Sato’s Car
Han Cheolyong, pistol in hand, chases the car Sato is supposed to be in. But inside is Jang Jeongyeop, gagged and bound. In the instant Han hesitates, a shot comes from the car and hits him. Police were already hiding all around. In a heartbeat, the assassination turns into an ambush.
While Soran covers them with her sniper rifle, the bound Jang Jeongyeop scrambles out of the car. Gwak Unhak and Lee Yeongbok, their faces covered, pull up in a car and get him in. They escape the scene, but Jang has already been shot, and he dies in the car. On the second floor of the fabric shop, Soran aims at Fukuda but hits the man behind him. Fukuda’s pistol, on the other hand, hits Soran. Moments later, a swarm of police rushes toward the fabric shop where the shots came from.
Did Sato Plant a Spy of His Own?
The Episode 4 operation should be seen as a trap Sato set from the start. The Gugukdan’s plans had been exposed far too easily. The winning student, Jongno Police Station, and the venue all expected the Superintendent, as if they were simply waiting for the Gugukdan to make its move. And in Sato’s car was Jang Jeongyeop, already captured and tied up, while police were hiding at every turn. The Gugukdan’s plans were leaking from somewhere.
History only deepens the suspicion. Far more spies were planted inside the independence movement by imperial Japan than were ever sent into the Government-General by independence groups. Kim Gu, leader of the Provisional Government, was relentlessly targeted by Japanese-planted spies trying to kill him. The Nammokcheong incident of 1938, when Kim Gu was shot in Changsha, China, was long thought to be the result of infighting among independence factions, but research based on Japanese records has shown that it was a Japanese spy operation. According to research, it was Japan’s third plot to assassinate Kim Gu. The bounty Japan put on his head was 600,000 won. By the yardstick we used in Episode 1, that’s tens of billions of won today.
So perhaps the biggest piece of foreshadowing in this drama is a spy inside the independence fighters’ own ranks. The person the Gugukdan should really be suspicious of, while they test Gakyeong’s loyalty, may already be among them.
Why Haven’t Koreans Forgotten Japan’s Colonial Atrocities?
Sato said hope gets passed down to the children. But it wasn’t only hope that was passed down. The memories of that era came with it.
Korea has a word, geugil (克日), which means overcoming Japan. The shock of losing the country to a neighbor that had long received Korea’s culture still runs deep in Korean hearts. In Korean history classes, the biggest unit covers how Joseon lost its sovereignty. It’s complicated and full of things to memorize, the biggest hurdle for students cramming for exams, but once you get through it, patriotism is firmly in place.
That’s why, when the news came that Korea’s per capita GDP had overtaken Japan’s, plenty of Koreans celebrated that they had finally achieved geugil. Japan’s Cabinet Office reported that Japan’s per capita GDP fell behind Korea’s for the first time in 2023, and in 2024 the gap widened, with Japan at $33,785 and Korea at $36,239. Japan’s Kyodo News blamed a falling birthrate, an aging population, and chronic low growth combined with a weak yen, noting that Japan had now fallen behind not only Korea but also Spain and Slovenia. Even a single economic indicator makes one side celebrate and the other side hurt. That’s what the relationship between Korea and Japan is like.
Why Doesn’t Japan Understand Korea’s Anti-Japanese Sentiment?
On the other side, critics often point out that Japanese schools don’t adequately teach the history of Japan’s modern-era invasions. For someone who never properly learned about that period, it’s hard to understand why Koreans still bring it up.
One side learns this history as its thickest chapter, while the other passes through it briefly. That’s why the two countries feel such different things about the same events.
What Is the Cruelest Lie Told to Gakyeong?
Gakyeong saw through the fake torture. But seeing through the play doesn’t mean the body that took the beating is fine. The one limping into work the next day is Gakyeong. And the bigger lie lies outside that room. The people who beat her to test whether she’d betray them can’t keep the very promise they made her.
I don’t think Soran’s feelings were false. The moment she spoke Seohui’s name and said she needed Gakyeong was probably real. The problem is that her sincerity isn’t reason enough to tell Gakyeong the truth. Sato wants to strip Koreans of their hope for independence, while Soran needs Gakyeong to keep believing she can reach America. Their positions are opposite, but neither leaves it to Gakyeong to decide what happens to her own hope.
Why Did Japan Write Korea’s History Books?
One of the most insidious things Japan did after colonizing Korea was to try to wipe out the Korean national spirit. At the core of that effort was shrinking and distorting Korean history. The Government-General really did have a body called the Korean History Compilation Committee, officially launched in 1925 to compile a history of Korea. Its chairman was none other than the Administrative Superintendent. The scene where Sato receives a briefing on the compilation of Korean history ties directly to that reality.
The view of history that came out of this is called the colonial view of history. Its logic: Korea never developed on its own and was always pushed around by other powers, so Japan’s rule wasn’t an invasion but necessary governance. That’s nonsense. Countless elements of culture and technology traveled to Japan by way of China and the Korean Peninsula. The colonial view of history denied that fact and turned it completely upside down.
Japan at the time tried to crush people with guns and torture, rewrite their history, and reduce Korea to something like a nation of slaves. Korea has still not fully overcome this colonial view of history.
Who Were Lee Bong-chang, Who Tried to Kill the Japanese King, and Kim Gu, Who Sent Him?
The attack by Lee Bong-chang that Sato mentions really happened. On January 8, 1932, in Tokyo, Lee Bong-chang threw a bomb at the procession of the Japanese king, Hirohito. He failed to kill him and was arrested on the spot. The man who sent him was Kim Gu of the Provisional Government of the Republic of Korea. Lee was the first operative of the Korean Patriotic Organization, which Kim Gu led, and the same group carried out Yun Bong-gil’s attack in Shanghai that April.
Lee Bong-chang had faced discrimination as a Korean while working in Japan. He even tried living under a Japanese name, but couldn’t escape the discrimination, and eventually went to Shanghai, where he met Kim Gu. He comes to mind when watching Hideo, a man who lives more Japanese than the Japanese.
Sato calls Lee Bong-chang a terrorist. But in Korea, he is remembered as an independence fighter who aimed straight at the heart of the empire. Even the names given to the same event carry the different views of the ruler and the ruled.
Why Do Koreans Say “Japanese King” Instead of “Emperor”?
The man the English subtitles call “the Emperor,” most Koreans call ilwang, the Japanese king, rather than cheonhwang. It’s the same person. Cheonhwang means “Heavenly Emperor.” Considering how that authority was forced on Koreans during the colonial era, it’s hard to use the title as is. Ilwang simply means “king of Japan” and refers to the Japanese monarch without the unnecessary honor. Throughout this post, I deliberately use “Japanese king” to reflect my choice of ilwang rather than cheonhwang.
Of course, the Korean government does use cheonhwang in official diplomatic documents. Still, if foreign readers come across “ilwang” in Korean articles, it’s worth knowing that it’s not just a translation quirk.
Korean has an expression: “even if a knife comes to my throat.” Even if a knife came to my throat, I could never call him cheonhwang.
A Pistol Shot That Hits Soran Hundreds of Meters Away?
It’s a small thing, but a disappointing scene. Korean dramas tend to be weak on firearms accuracy. Korea’s conscription system means many men have experience firing rifles during military service. Experience with pistols, however, is much less common. In Episode 4, Fukuda hits Soran in a second-floor window of a building that looks easily hundreds of meters away, with a pistol, barely even aiming.
Whether a bullet can travel that far and whether it can accurately hit a person there are two completely different questions. Even Olympic pistol events are shot at 25 meters. As American readers familiar with guns will know, hitting a target hundreds of meters away with an unaimed pistol is impossible. Korean dramas need better firearms research.
Basic Info
- Official English title: 100 Days of Deception
- Formerly known as: 100 Days of Lies
- Korean title: 100일의 거짓말 (Baegirui Geojinmal)
- Genre: Period drama, espionage, romance
- Setting: Gyeongseong (colonial-era Seoul), 1932
- Premiere: October 10, 2026
- Directors: Yoo In-shik, Kim Youn-jin
- Writer: Ryu Bo-ri
- Main cast: Kim You-jung (Lee Ga-kyeong), Park Jin-young (Sato Hideo), Kim Hyun-joo (Yu So-ran), Lee Moo-saeng (Philip Yu), Jin Seon-kyu (Sato Shinichi)
- Episode covered: Episode 4
- Where to watch: tvN and TVING in South Korea; Netflix in available regions. Availability varies by country.
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100 Days of Deception Episode 1 Recap: A Pickpocket, a Bullet, and Colonial Seoul
100 Days of Deception Episode 2 Recap: A Dead Daughter’s Name and a 13-Year-Old Pawn Ticket
100 Days of Deception Episode 3 Recap & Analysis: A Very Personal Reason to Become a Spy
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