WebtoonsYumi's Cells, the 512-episode webtoon that is now closing a Seoul stage musical
Lee Dong-gun's Yumi's Cells ran on Naver Webtoon from April 2015 to November 2020 and closed at 512 episodes. After two drama seasons and an animated feature, the musical adaptation that opened on June 30, 2026 plays its final show at the Seoul Arts Center on August 23.