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.
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Kim Go-eun
Kim Yu-mi
Kim Jae-won
Shin Soon-rok
Jun Seok-ho
Ahn Dae-yong
Lee Yu-bi
Lee Ruby
Mi Ram
Kang Yi-da
Daniel Choi
Kim Ju-ho
Cho Hye-jeong
Baek Na-hee
Sung Ji-ru
Kim Man-Sik
Park Se-in
Producer Jang