TV SERIES
100 Days My Prince
백일의 낭군님
ComedyDramaMystery
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.
Top cast
Doh Kyung-sooCrown Prince Lee Yool / Won-deuk
Nam Ji-hyunHong-sim / Yoon Yi-seo
Cho Seong-haKim Cha-eon
Cho Han-cheulKing
Oh Yeon-ahQueen Park
Ji Min-hyukPrince Seo-won
Kim Seon-hoJung Je-yoon
Jung Hae-kyunHong-sim's Stepfather
Han So-heeKim So-hye
Heo Jung-minKim Soo-Ji
Kim Jae-youngMoo-yeon
Jo Hyun-sikEunuch Yang
Where to watch
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OSN+
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Amazon Prime Video
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Shahid
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Watch It
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TOD
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Disney+
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Apple TV+
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Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 13 Jul 2026.