Some K-drama pairings just feel inevitable, and this one’s got fans already circling October 10 on their calendars. tvN’s upcoming spy romance “100 Days of Deception” just dropped its first stills, teasing a slow-burn built entirely on secrets, mistaken identities, and a station platform that changes everything.
Directed by Yoo In Shik — the mind behind Extraordinary Attorney Woo — the drama drops us into 1930s Gyeongseong during the Japanese occupation. Kim You Jung plays Lee Ga Kyeong, the city’s sharpest pickpocket who gets pulled into the independence movement as an undercover spy. Park Jinyoung plays Kim Tae Woong, an interpreter living under the assumed identity Sato Hideo, adopted son of one of the era’s most powerful officials. Neither knows who the other really is. That’s the whole premise, and it’s a great one.
Table of Contents
100 Days of Deception: Overview
| Detail | Info |
|---|---|
| Title | 100 Days of Deception |
| Genre | Period spy romance |
| Lead cast | Kim You Jung, Park Jinyoung |
| Director | Yoo In Shik |
| Setting | Gyeongseong, Japanese occupation era |
| Premiere | October 10, 9:10 PM KST |
| Network | tvN |
Two Identities, One Impossible Attraction
What makes the stills interesting isn’t just the costuming — though Lee Ga Kyeong’s shift from a worn hanbok to a sharp bob-and-suit disguise as “Geum Seo Hee” says a lot on its own. It’s the setup: two people who’ve spent their whole lives hiding who they are, meeting by what looks like coincidence at Gyeongseong Station, and slowly getting tangled in each other’s lies. The production team has teased chemistry that swings between playful and genuinely moving, which tracks for a story built on mutual suspicion turning into something else.

Kim You Jung and Park Jinyoung aren’t strangers to prestige dramas — fans wanting a preview of their range can check her recent work in Dear X or his turn in The Devil Judge while the countdown to October runs. For more upcoming K-drama premieres and cast reveals worth tracking, TechnoSports has been keeping a running list.
With a strong director, a loaded premise, and two leads clearly game for the disguise-heavy plot, “100 Days of Deception” is shaping up to be one of this fall’s more anticipated debuts.
FAQs
When does 100 Days of Deception premiere?
It airs October 10 at 9:10 PM KST on tvN.
What is the drama about?
It follows a spy and an undercover interpreter who fall for each other while hiding their true identities during the Japanese occupation of Korea.





