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. 
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Writer
Creator
Cast
Crown Prince Lee Yool / Won-deuk
Hong-sim / Yoon Yi-seo
Kim Cha-eon
King
Queen Park
Prince Seo-won
Jung Je-yoon
Hong-sim's Stepfather
Kim So-hye
Kim Soo-Ji
Video trailer
Original title 백일의 낭군님
TMDb Rating 7.9 173 votes
First air date Sep. 10, 2018
Last air date Oct. 30, 2018
Seasons 1
Episodes 30
Average Duration 75 minutes
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