Key takeaways
- tvN released a promotional poster for "100 Days of Deception" showing multiple simultaneous crises unfolding within the Japanese Government-General building.
- The previous episode revealed that Gugukdan's assassination attempt was a trap set by Sato Shinichi, raising the stakes for all characters involved.
- Lee Ga Kyeong must maintain her cover as Geum Seo Hee while multiple independent operations converge around her inside the Government-General.
- The next episode airs on October 24 at 9:10 p.m. KST.
tvN’s latest period spy romance, “100 Days of Deception,” has released a promotional poster showcasing multiple crises unfolding simultaneously within the Japanese Government-General of Korea. The drama, set during the Japanese occupation of Korea, centers on Lee Ga Kyeong, a pickpocket played by Kim You Jung, who transforms into an undercover operative for the independence movement. Her mission places her inside the Japanese Government-General, where she becomes entangled with Kim Tae Woong, an interpreter who also answers to the Japanese name Sato Hideo and serves as the adopted son of the Inspector-General, the second-highest official in the colonial administration.
What distinguishes Lee Ga Kyeong’s position is the constant multiplication of threats. Every person within the Government-General building represents a potential exposure, every conversation a possible trap, and every assignment a new risk to her cover. The stakes became dramatically clearer in the previous episode, when the resistance movement’s careful planning collapsed into a chilling discovery: Gugukdan’s assassination attempt had been engineered as a trap.
The Setup: A Spy Embedded in Enemy Territory
Lee Ga Kyeong’s infiltration of the Government-General requires her to operate under an assumed identity, Geum Seo Hee, placing her constantly at risk of exposure. Her dual loyalty to the independence movement on one side and the appearance of colonial authority on the other creates an unstable equilibrium that the new poster emphasizes through its layered visual composition.
Kim Tae Woong, portrayed by GOT7’s Park Jinyoung, occupies an equally precarious position within the Japanese administration. As both interpreter and adopted family member of a top official whose role ranks among the highest in the colonial hierarchy, his proximity to power makes him either a valuable asset or a serious liability to the revolutionary cause.

Recent Events and Rising Stakes
The previous episode delivered a significant turning point for the resistance movement. Gugukdan, an independence faction, orchestrated a second assassination attempt against Sato Shinichi, the Inspector-General himself played by Jin Sun Kyu. Their timing seemed calculated and their intelligence precise, yet they discovered too late that the entire operation had been built on false information. Sato Shinichi had laid a trap, and the resistance had walked directly into it.
This revelation ripples outward, affecting Lee Ga Kyeong’s own precarious position. Following a clandestine telephone conversation with Yoo Philip (Lee Moo Saeng), a member of the independence movement, she found herself suddenly exposed. Sato Hideo appeared without warning outside her door, transforming a moment of secret communication into a potential crisis that threatens everything she has built.
The Poster: Layers of Intrigue
The promotional image released by tvN frames the Government-General building at night, its facade transformed into a stage for multiple simultaneous scenes. Five illuminated windows each reveal one character in a different moment of high tension, each facing their own crisis or opportunity within the same dangerous location.
Lee Ga Kyeong’s Infiltration
On one level, Lee Ga Kyeong wheels a cart laden with a five-tier cake through the corridors of the Government-General. The cake serves as both cover and weapon, the kind of seemingly innocuous prop that could conceal anything. Her expression shows a woman who remains hyperaware of her surroundings, scanning for threats, calculating distances and escape routes. Operating under the false identity of Geum Seo Hee, she cannot afford a single mistake.
Sato Hideo’s Violence
One floor below, Sato Hideo raises a firearm, pointing it directly at an unseen target somewhere within the building. The reason for drawing a weapon inside the Government-General remains unclear from the poster alone, introducing immediate questions about whether his allegiances have shifted, whether he has discovered Ga Kyeong’s true identity, or whether other forces are at work.
The Resistance’s Counterattack
Yoo So Ran (Kim Hyun Joo) and Yoo Philip (Lee Moo Saeng) coordinate their own operation, separate from but potentially intersecting with Lee Ga Kyeong’s mission. The poster shows Yoo So Ran reaching into her bag, her hand disappearing into its depths to retrieve something. Yoo Philip, meanwhile, records information in his notebook, planning, documenting, preparing for the moment of action. Their scheme introduces a new variable into an already fractured situation: how their independent plot will collide with the cake-carrying spy’s presence inside the building.
The Visual Language
At the building’s peak, Sato Shinichi stands apart, champagne glass in hand, somehow removed from the chaos unfolding beneath him. As the man who set the trap that ensnared the Gugukdan assassination team, he occupies a position of power. The poster offers no hint about his awareness of the other schemes developing floors below. Lee Ga Kyeong is already planted inside the Government-General. The question becomes whether she will survive the next forty-eight hours as multiple operations converge on the same location.
What Comes Next
The next episode airs on October 24 at 9:10 p.m. KST. The released poster exists in both motion and still versions, each offering viewers a different perspective on the perilous scenes about to unfold. The convergence of these separate operations inside the Government-General promises to escalate the conflict across all storylines simultaneously, with none of the characters fully aware of what the others are planning.
Source: Soompi
Frequently Asked Questions
Who plays Lee Ga Kyeong in "100 Days of Deception"?
Kim You Jung plays the lead role of Lee Ga Kyeong, a pickpocket turned undercover spy who infiltrates the Japanese Government-General of Korea to work for the independence movement.
What happened in the previous episode?
Gugukdan attempted a second assassination against Sato Shinichi, the Inspector-General, but discovered the information was a trap set by Shinichi himself. Lee Ga Kyeong also faced danger when Sato Hideo discovered her immediately after a secret phone call to Yoo Philip.
When does the next episode air?
The next episode of "100 Days of Deception" airs on October 24 at 9:10 p.m. KST.