Kim You Jung Turns Spy in Gripping New Teaser for 100 Days of Deception

A pickpocket, a spy mission, and a dangerous double life — tvN’s newest period drama just dropped a teaser that has fans buzzing, and it’s easy to see why.

Directed by Yoo In Shik, the filmmaker behind hits like Extraordinary Attorney Woo and the Dr. Romantic series, 100 Days of Deception is a period spy romance set during the Japanese occupation of Korea, unfolding over a tense 100-day window.

What the Teaser Reveals

The story follows Lee Ga Kyeong, played by Kim You Jung, introduced as the most skilled pickpocket in Gyeongseong, present-day Seoul. Her life takes a dramatic turn when she’s recruited into the independence movement as an undercover spy, tasked with infiltrating the Japanese Government-General of Korea.

Things get complicated when she crosses paths with Kim Tae Woong, played by GOT7’s Park Jinyoung, an interpreter who also goes by the name Sato Hideo. He’s the adopted son of the Inspector-General of Korea, making him one of the most dangerous people for her to get close to — and yet, their paths become deeply intertwined.

100 Days of Deception: Details

The Setup Behind Her Mission

The teaser opens by showcasing Lee Ga Kyeong’s pickpocketing skills before she’s approached by Yoo So Ran, a sniper working with an anti-Japanese resistance group. After Ga Kyeong expresses her dream of going to America, Yoo So Ran offers her a life-changing deal: help infiltrate the Japanese Government-General in exchange for passage overseas.

Stunned by the proposal, Ga Kyeong takes on a false identity, disguising herself as an interpreter trainee under the name Geum Seo Hee. The teaser closes with her introducing herself to Kim Tae Woong in Japanese on her very first day undercover, setting the stage for a high-stakes relationship built entirely on secrets.

Why This Drama Has Fans Excited

Between Kim You Jung’s proven range in complex, layered roles and Park Jinyoung’s growing filmography beyond music, the pairing alone has generated plenty of anticipation. Add a politically charged historical backdrop, a resistance movement storyline, and a forbidden romance brewing under constant danger, and it’s clear why this teaser is already making waves ahead of its premiere.

For more K-drama news, teasers, and premiere updates, Techno Sports keeps fans in the loop on what to watch next.

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