Plot: What Is 100 Days of Deception About?
The story is set in Gyeongseong, the colonial-era name for Seoul, during the Japanese occupation of Korea. Its central figure is a young woman who makes her living as a thief and is regarded as the best pickpocket in the city. She is tired of living under someone else’s rule and wants a free life. To get it, she accepts a dangerous job: slip into the Japanese colonial government and get secret information out.
The mission depends on her staying undercover. She has to keep her real identity hidden while moving among the people she is spying on. Then her assignment brings her close to the son of the very man she has been sent to target, and that connection turns into something she did not plan for. The show’s tagline, “Hide who you are, hide how you feel,” sums up her situation.
The series combines an espionage plot with a romance and a period resistance story, so its tension comes from both politics and personal feelings.
What Makes It Notable
- Cast: Kim You-jung plays Lee Ga-kyung. Jinyoung plays a character with two names, Kim Tae-ung / Hideo Sato. The rest of the main cast includes Kim Hyun-joo (Yoo So-ran), Lee Mu-saeng (Yoo Philip), Jin Sun-kyu (Shinichi Sato), Seo Jeong-yeon (Ryu Gwan-sil / Yanagi), Kiko Oi (Hanako Sato), Park Jung-yeon (Kim Myeong-nam), Lee Sun (Lee Young-bok) and Kim In-kwon (Han Cheol-ryong).
- Creators: Ryu Bo-ri wrote the series and Yoo In-sik directed it. Both are credited as creators, along with Kim Yoon-jin.
- Network: It airs on the South Korean cable channel tvN.
- Format: Season 1 has 16 episodes, and each runs about 67 minutes.
- Release date: It premiered on October 10, 2026.
- Genre: It is a Korean-language drama with action and adventure elements. Its themes include espionage, the Korean resistance and a romance between people on opposite sides.
If you are looking for a review, this guide sticks to the premise, cast and format so you can decide for yourself whether the show suits you.
Who Will Enjoy It
- Viewers who like K-dramas set during the Japanese occupation period
- Fans of spy stories built on undercover missions and hidden identities
- People who enjoy romance mixed with danger and divided loyalties
- Followers of Kim You-jung, Jinyoung or Kim In-kwon
- Anyone who wants a shorter, complete-season commitment of 16 episodes
Where to Watch 100 Days of Deception in the Philippines
In the Philippines, 100 Days of Deception is listed on Netflix, and you need a paid subscription to watch it. The series first aired in South Korea on tvN on October 10, 2026. Netflix is the official platform listed for Philippine viewers.
Trailer
Cast
Kim You-jungas Lee Ga-kyung16 episodesSee credits →
Jinyoungas Kim Tae-ung / Hideo Sato16 episodes
Kim Hyun-jooas Yoo So-ran16 episodes
Lee Mu-saengas Yoo Philip16 episodes
Jin Sun-kyuas Shinichi Sato16 episodes
Seo Jeong-yeonas Ryu Gwan-sil / Yanagi16 episodesSee credits →
Kiko Oias Hanako Sato16 episodes
Park Jung-yeonas Kim Myeong-nam16 episodes
Photo: TMDB
Episode guide
| Season | Episode | Original air date | |
|---|---|---|---|
| 1 | 1 | Aired | |
| 1 | 2 | Aired | |
| 1 | 3 | Aired | |
| 1 | 4 | Aired | |
| 1 | 5 | Aired | |
| 1 | 6 | Aired | |
| 1 | 7 | Upcoming | |
| 1 | 8 | Upcoming | |
| 1 | 9 | Upcoming | |
| 1 | 10 | Upcoming | |
| 1 | 11 | Upcoming | |
| 1 | 12 | Upcoming | |
| 1 | 13 | Upcoming | |
| 1 | 14 | Upcoming | |
| 1 | 15 | Upcoming | |
| 1 | 16 | Upcoming |
Dates are original broadcast dates in the country of origin (Korea/China). Official streaming platforms in your country may add episodes the same day or later.
FAQ
- How many episodes does 100 Days of Deception have?
- Season 1 has 16 episodes, and each one runs about 67 minutes.
- Where can I watch 100 Days of Deception legally in the Philippines?
- It is listed on Netflix in the Philippines, which requires a subscription.
- Who is in the cast of 100 Days of Deception?
- Kim You-jung plays Lee Ga-kyung and Jinyoung plays Kim Tae-ung / Hideo Sato. They are joined by Kim Hyun-joo, Lee Mu-saeng, Jin Sun-kyu, Seo Jeong-yeon, Kiko Oi, Park Jung-yeon, Lee Sun and Kim In-kwon.
- When was 100 Days of Deception released?
- The series premiered on October 10, 2026, on tvN in South Korea. In the Philippines, it is listed on Netflix.
- What genre is 100 Days of Deception?
- It is a Korean period drama with action and adventure elements. It focuses on espionage, the Korean resistance during the Japanese occupation, and a romance under cover.
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