
Yumi is a 30-year old, ordinary woman who struggles with expressing her feelings. Told from the perspective of the many brain cells in her head, she experiences growth in both her love life, her career, and finds happiness in the small joys of everyday life.
StatusReturning Series
TypeMiniseries
Original LanguageKorean
Network

Season 1 of Yumi's Cells premiered on September 17, 2021
After a painful breakup, office worker Yumi’s "love cells" fall into a coma, leaving her daily life dull and romance-free. Her outlook changes when she meets Gu Woong, an emotionally stunted game developer who sparks an unexpected connection. As they navigate their budding feelings, Yumi's cells work to reignite her heart and help her find love again.

Season 2 of Yumi's Cells premiered on June 10, 2022
After a chance meeting with game designer Goo Woong helped revive her "love cells," Yumi enters a new chapter of growth following their eventual breakup. When an unexpected source of inspiration from her co-worker, Bobby Yoo, reignites her ambition, Yumi sets out to pursue her long-held professional dreams. As she navigates fresh personal and career challenges, Yumi strives to find true fulfillment in both her life and her heart.

Season 3 of Yumi's Cells premiered on April 13, 2026
Now a successful web novelist, Yumi has achieved her professional dreams but finds her "cells" have grown dormant, leaving her feeling indifferent. Her quiet life is disrupted by her new editor, Shin Soon-rok, whose rational nature unexpectedly reawakens her emotions. As Yumi navigates her connection with Soon-rok, she is also pursued by a charming fellow writer, forcing her to decide which path will lead to the fulfillment she seeks.

김고은
Kim Yu-mi

김재원
Shin Soon-rok

전석호
Ahn Dae-yong

최다니엘
Kim Ju-ho

조혜정
Baek Na-hee

미람
Kang Yi-da

박세인
Producer Jang

성지루
Kim Man-Sik

이유비
Lee Ruby