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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.

  1. Lee Jong-jae


  2. So Jae-Hyun


Series Cast

  1. Doh Kyung-soo

    Doh Kyung-soo

    Crown Prince Lee Yool / Won-deuk

    16 Episodes

  2. Nam Ji-hyeon

    Nam Ji-hyeon

    Hong-sim / Yoon Yi-seo

    16 Episodes

  3. Cho Seong-ha

    Cho Seong-ha

    Kim Cha-eon

    16 Episodes

  4. Jo Han-chul

    Jo Han-chul


    16 Episodes

  5. Oh Yeon-ah

    Oh Yeon-ah

    Queen Park

    16 Episodes

Full Cast & Crew

Last Season

100 Days My Prince

Season 1

2018 | 16 Episodes

Season 1 of 100 Days My Prince premiered on September 10, 2018.

View All Seasons

100 Days My Prince
100 Days My Prince



Original Name 백일의 낭군님

Status Ended


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  • 15


    This rating is for programs that contain material that may be inappropriate for children under 15, and that parental discretion should be used. Examples include most dramas, and talk shows on OTA (over-the-air) TV (KBS, MBC, SBS), and many American TV shows/dramas on Cable TV channels like OCN and OnStyle. The programs that have this rating may include moderate or strong adult themes, language, sexual inference, and violence. As with the TV-MA rating in North America, this rating is commonly applied to live events where the occurrence of inappropriate dialogue is unpredictable. Since 2007, this rating is the most used rating for TV.

Type Scripted

Original Language Korean

Runtime 70m



Content Score


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