The upcoming historical spy-thriller series 100 Days of Deception is scheduled to premiere on October 10, 2026, according to announcements from streaming platforms and broadcasters. The Korean-language drama, also known under alternative titles such as 100 Days of Lies or 100-D, will air on tvN every Saturday and Sunday at 21:10 Korean Standard Time (KST), with simultaneous global availability on Netflix.
Directed by Yoo In-shik—whose prior notable credits include The Wonderfools and Romance 2016—the series is written by Ryu Bo-ri. Production on the 16-episode project commenced in March 2026 at Nonsan Sunshine Land. The broadcast schedule runs from the premiere on October 10 through the series finale on November 29, 2026, with each weekly installment running for approximately 70 minutes.
Plot and Historical Setting
Set during the 1930s in Gyeongseong under Japanese colonial rule, the narrative follows Lee Ga-kyung, a pickpocket whose primary goal is accumulating enough wealth to leave Joseon and start a new life in America. Her trajectory shifts when an anti-Japanese independence group approaches her with an assignment: infiltrate the Japanese Government-General of Korea as a trainee for an undercover mission lasting 100 days.
As Ga-kyung gathers intelligence from inside the colonial administration, she encounters Kim Tae-woong, also known as Sato Hideo. Tae-woong works as an elite multilingual interpreter and serves as the adopted son of Sato Shinichi, the director-general of political affairs. The unfolding storyline intertwines espionage, political secrets, and shifting allegiances across the colonial administration.
Cast and Characters
According to production disclosures, the main cast features several prominent television actors:
- Kim You-jung as Lee Ga-kyung: Portrays the cunning pickpocket tasked with the 100-day undercover operation. Her previous television credits include My Demon, Backstreet Rookie, and Chicken Nugget.
- Park Jin Young as Kim Tae-woong / Sato Hideo: Plays the elite interpreter and adopted son of Sato Shinichi. His prior work includes Dream High 2, The Witch, and The Devil Judge.
- Kim Hyun-joo as Yoo So-ran: Depicts a sniper associated with an anti-Japanese independence group who re-enters Korea after a decade abroad under the identity of a Chinese woman. Her notable dramas include Hellbound, Undercover, and Trolley.
- Lee Moo-saeng as Phillip Yoo: Portrays a dual-role journalist operating as an American-company correspondent in Gyeongseong who exerts political pressure on the government’s leadership while maintaining a marriage with Yoo So-ran. His credits feature The Silent Sea, The World of the Married, and Hide.
- Jin Seon-kyu as Sato Shinichi: Takes the role of the ambitious director-general of political affairs and adoptive father to Park Jin-young. His recent appearances include Husband in Action, The Price of Confession, The Witch, and Revenant.
The supporting roster includes Park Jung Yeon as Kim Myeong Nam, alongside Kim Do Hyun and Kim Joong Hee.
Broadcast and Distribution Schedule
The 16-episode run is structured across weekends, with new episodes releasing on Saturdays and Sundays. The full rollout comprises:
- Episode 1: October 10, 2026
- Episode 2: October 11, 2026
- Episode 3: October 17, 2026
- Episode 4: October 18, 2026
- Episode 5: October 24, 2026
- Episode 6: October 25, 2026
- Episode 7: October 31, 2026
- Episode 8: November 1, 2026
- Episode 9: November 7, 2026
- Episode 10: November 8, 2026
- Episode 11: November 14, 2026
- Episode 12: November 15, 2026
- Episode 13: November 21, 2026
- Episode 14: November 22, 2026
- Episode 15: November 28, 2026
- Episode 16: November 29, 2026
Viewers in South Korea can watch the series via tvN with a standard cable subscription, while international audiences can access the episodes globally on Netflix on the same broadcast dates. Production houses Studio Dragon and Nangman Crew are managing the series’ delivery ahead of its scheduled October launch.
