100 Days of Deception

100 Days of Deception: Kim You Jung and Park Jinyoung Star in tvN’s Spy Romance Premiering October 10

Five characters, five lies. tvN's upcoming period drama 100 Days of Deception has released motion posters showing each lead hiding their true face, and the story already sounds like a…

October 7, 2026
3 min read

Five characters, five lies. tvN’s upcoming period drama 100 Days of Deception has released motion posters showing each lead hiding their true face, and the story already sounds like a high-stakes romance.

100 Days of Deception: Story

The drama is a period spy romance set over 100 days during the Japanese occupation of Korea. Lee Ga Kyeong (Kim You Jung) is the top pickpocket in Gyeongseong, which is present-day Seoul. She becomes an undercover spy for the independence movement and infiltrates the Japanese Government-General of Korea under the false name Geum Seo Hee. There she gets entangled with interpreter Kim Tae Woong (GOT7’s Park Jinyoung), known as Sato Hideo, who is the adopted son of the Inspector-General of Korea.

100 Days of Deception: Overview

DetailInfo
Drama100 Days of Deception
NetworktvN
PremiereOctober 10, 9:10 p.m. KST
Time in IndiaOctober 10, about 5:40 p.m. IST
LeadsKim You Jung and Park Jinyoung
DirectorYoo In Shik (Extraordinary Attorney Woo, the Dr. Romantic series)
GenrePeriod spy romance

The Five Characters and Their Lies

  • Lee Ga Kyeong (Kim You Jung): A pickpocket posing as someone else. Her poster caption reads, “It was a 100-day lie. Until it became the truth.”
  • Sato Hideo (Park Jinyoung): A perfect adopted son until he meets Ga Kyeong and is thrown into turmoil.
  • Yoo So Ran (Kim Hyun Joo): A woman who offers Ga Kyeong a dangerous deal tied to her plot for revenge.
  • Yoo Philip (Lee Moo Saeng): A journalist who fights with his pen, not a gun.
  • Sato Shinichi (Jin Sun Kyu): The Inspector-General of Korea and Hideo’s adoptive father.

Why It Looks Promising?

The mix of spies, secret identities and a slow-burn romance gives the story built-in tension. With Yoo In Shik directing, viewers can also expect careful character work. Each poster shows a mask slipping, which hints that every lead will face a moment where the lie becomes real.

Where to Catch Up Before Premiere?

Fans can watch Kim You Jung’s latest drama Dear X and Park Jinyoung’s film Hi-Five on Viki while they wait.

Looking for more to watch? Visit Technosports for K-drama updates, and our OTT and drama guides for more.

FAQs

Q1. When does 100 Days of Deception premiere?
It premieres on tvN on October 10 at 9:10 p.m. KST, about 5:40 p.m. IST.

Q2. Who stars in 100 Days of Deception?
Kim You Jung and Park Jinyoung lead, with Kim Hyun Joo, Lee Moo Saeng and Jin Sun Kyu in key roles.

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