100 Days My Prince

Released in 2018, 100 Days My Prince remains a cornerstone of tvN’s historical drama programming. The series follows Crown Prince Lee Yul, portrayed by Do Kyung-soo, who survives an assassination attempt only to suffer from amnesia. Living as the eccentric commoner Won-deuk, he enters a forced marriage with Hong-shim, played by Nam Ji-hyun. Beyond its romantic core, the show balanced political maneuvering with genuine humor, avoiding the heavy melodrama often found in period pieces. Its success proved that cable networks could dominate the traditional sageuk market. With its record-breaking viewership, the series cemented Do’s status as a formidable leading man and revitalized interest in the memory loss trope through sharp writing and strong chemistry. It remains a beloved entry in the Korean wave.