100 Days My Prince (2018)
A Korean historical romance where a crown prince loses his memory and discovers love — and himself — among ordinary people.
100 Days My Prince - Series Information
- Original Title: 백일의 낭군님
- First Air Year: 2018
- Last Air Year: 2018
- Created by: So Jae-hyun, Lee Jong-jae
- Type: TV Series
- Genres: Comedy, Drama, Mystery
- Content Rating (US): TV-14
- Episode Runtime: Average runtime per episode (67 minutes)
- Number of Seasons: 1
- Number of Episodes: 16
- Status: Ended
- Original Language: Korean
- Spoken Languages: Korean
- First Air Date: September 10, 2018 (United States - TV-14), September 10, 2018 (Canada - 14+), September 10, 2018 (United Kingdom - 12), September 10, 2018 (Germany - 12), September 10, 2018 (France - 12), September 10, 2018 (India - U/A 13+), September 10, 2018 (New Zealand - M), September 10, 2018 (Australia - M), September 10, 2018 (Brazil - 12), September 10, 2018 (Mexico - B-15), September 10, 2018 (Spain - 12), September 10, 2018 (South Korea - 15)
- Networks: tvN
- Alternative Titles: 100 Days My Prince (US), 백일의 낭군님 (KR), Lang Quân 100 Ngày (VN), Mi Príncipe en Cien Días [100 Days My Prince] (ES), รัก 100 วันของฉันและองค์ชาย (TH)
- Production Companies: AStory, Studio Dragon
- Production Countries: South Korea
100 Days My Prince - Plot
Lee Yool falls off a cliff and nearly dies in an attempted assassination. He loses his memory, and wanders for 100 days under a new name and personality. During this period, he meets Hong Sim, head of the first detective agency in Joseon.
100 Days My Prince - Trailer
Watch the official trailer and get a first look at the romance and intrigue ahead:
I will marry you someday.
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100 Days My Prince - Cast & Crew
Creator(s)
- So Jae-hyun
- Lee Jong-jae
Main Cast
- Doh Kyung-soo
- Nam Ji-hyun
- Cho Seong-ha
- Cho Han-cheul
- Oh Yeon-ah
- Ji Min-hyuk
- Kim Seon-ho
- Jung Hae-kyun
- Han So-hee
- Heo Jung-min
Writers
- Noh Ji-sul
100 Days My Prince - FAQs
What role did Kim Seon-ho play in 100 Days My Prince?
Kim Seon-ho played Jung Je-yoon, a sharp and loyal government official who becomes entangled in the political intrigue surrounding the missing crown prince. It was one of his earlier notable television roles before he rose to widespread fame, and his performance earned warm praise from viewers.
Is 100 Days My Prince based on a true story?
The series is a work of fiction set during the Joseon Dynasty era of ancient Korea. While it draws on the atmosphere and social structures of that historical period, the characters and central plot — including the crown prince's amnesia and his romance with a commoner — are entirely invented by writer Noh Ji-sul.
Where can you stream 100 Days My Prince?
You can stream 100 Days My Prince on Netflix and Netflix Standard with Ads. It is also available on Rakuten Viki, which offers both a subscription tier and a free ad-supported option. Availability may vary slightly depending on your region.
What is the marriage of convenience plot in 100 Days My Prince?
After losing his memory, Crown Prince Lee Yool ends up in a small village where he is pressured into marrying Hong-sim, a headstrong woman trying to avoid an unwanted match. Neither knows his true identity, turning their forced union into the heart of the show's romantic and comedic tension.
How was 100 Days My Prince received by critics and audiences?
The series was a genuine hit, drawing strong domestic ratings on tvN and earning enthusiastic international attention through Netflix. Viewers praised the chemistry between Doh Kyung-soo and Nam Ji-hyun, the blend of comedy and political intrigue, and the satisfying emotional payoff across its 16 episodes.
Who are the lead actors in 100 Days My Prince?
Doh Kyung-soo — widely known by his stage name D.O. from the K-pop group EXO — leads the cast as Crown Prince Lee Yool, opposite Nam Ji-hyun as the resourceful Hong-sim. The supporting cast includes Cho Seong-ha, Kim Seon-ho, Han So-hee, and Jung Hae-kyun, among others.
What are some shows similar to 100 Days My Prince?
If you enjoyed 100 Days My Prince, you might love The Tale of Nokdu, Rooftop Prince, or Mr. Queen — all Korean historicals with fish-out-of-water romance. The Forbidden Marriage and Knight Flower offer similar Joseon-era charm, while Sungkyunkwan Scandal and The King's Affection are also fan favourites in the genre.
Did Han So-hee appear in 100 Days My Prince?
Yes, Han So-hee appeared in 100 Days My Prince as Kim So-hye in a supporting role. It was one of her early television appearances before she became a major star through breakout performances in My Mister and The World of the Married, making this series a fascinating early look at her career.
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