100 Days of Lies
Upcoming South Korean television series
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100 Days of Lies (Korean: 100ì¼ì ê±°ì§ë§) is an upcoming South Korean television series written by Ryu Bo-ri, and directed by Yoo In-shik, starring Kim You-jung, Park Jin-young, Kim Hyun-joo, Lee Moo-saeng, and Jin Seon-kyu It is scheduled to premiere on tvN in the second half of 2026, and will also be available for streaming on Netflix.[2]
| 100 Days of Lies | |
|---|---|
| Hangul | 100ì¼ì ê±°ì§ë§ |
| RR | 100irui geojinmal |
| MR | 100irÅi kÅjinmal |
| Genre | |
| Developed by | Studio Dragon |
| Written by | Ryu Bo-ri |
| Directed by | Yoo In-shik |
| Starring | |
| Country of origin | South Korea |
| Original language | Korean |
| Production | |
| Production companies |
|
| Original release | |
| Network | tvN |
| Release | 2026 |
Synopsis
Lee Ga-kyung, Gyeongseong's most skilled pickpocket, survives by lying and deceiving others. Hoping to earn enough money to leave Joseon and start a new life abroad, she agrees to go undercover as an interpreter at the Japanese Government-General of Korea for 100 days on behalf of the independence movement. There she crosses paths with Kim Tae-woong, also known as Sato Hideo, an elite interpreter and the adopted son of Inspector-General Sato Shinichi. As the two become entangled in secrets and hidden loyalties within the colonial government, their lives intersect amid espionage, danger, and the growing struggle for Korean independence.
Cast
Main
- Kim You-jung as Lee Ga-kyung[3]
- Gyeongseong's most skilled pickpocket, capable of lying and deceiving others with ease. Her dream is to save enough money to leave Joseon and start a new life elsewhere.
- Park Jin-young as Kim Tae-woong / Hideo Sato[4]
- The adopted son of Sato Shinichi and a newly appointed elite interpreter at the Government-General, fluent in English, Japanese, and Korean.
- Kim Hyun-joo as Yoo So-ran[5]
- A sniper in the independence movement seeking revenge against Sato Shinichi.
- Lee Moo-saeng as Phillip Yoo[2]
- A Gyeongseong correspondent working for a U.S. news agency.
- Jin Seon-kyu as Shinichi Sato [6]
- The newly appointed Inspector-General of Korea and the adoptive father of Sato Hideo, an ambitious man willing to do anything for power.
Supporting
- Park Jung-yeon as Kim Myung-nam[7]
Production
Development
The series is produced by Studio Dragon and Nangman Crew. Yoo In-shik, who directed Dr. Romantic (2016â2023) and Extraordinary Attorney Woo (2022), was attached to direct, while Ryu Bo-ri, who wrote Do You Like Brahms? (2020) and Trolley (2024), serves as the screenwriter.[1][3]
The first script reading was conducted on February 6, 2026.[8]
Casting
In October 2024, Kim You-jung was reportedly cast in a leading role.[3] The following month, Kim Hyun-joo was reported to have joined the cast.[5] In July 2025, Park Jin-young was reportedly cast as the male lead.[4] In December 2025, Jin Seon-kyu was reported to have joined the cast.[6]
In February 2026, tvN confirmed the main cast, including Lee Moo-saeng, as part of its 2026 lineup.[2]
Filming
Principal photography began in the March of 2026.[8]
Filming locations include Nonsan Sunshine Land in South Chungcheong Province, which was confirmed as a key filming location and main backdrop for the series and was previously used in the television series Mr. Sunshine.[9]
