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Yumi’s Cells (Season 1)

Title: 유미의 세포들 / Yumi’s Cells
Genre: Psychological, Romantic
Episodes: 14
Broadcast network: tvN
Broadcast period: 2021-Sep-17 to 2021-Oct-30
Air time: Friday & Saturday 22:50
Related Series: Yumi’s Cells


This drama is based on webcomic “Yumi’s Cells” by Lee Dong Gun which was published from 2015-April-01 to 2020-Nov-13 via Naver.

Kim Yoo Mi (Kim Go Eun) is an ordinary office worker. The story frequently switches setting between Yumi’s real life and inside her mind where ‘cells’ represent each of her emotions and drives. Her love cells are in state of coma after a failed relationship. The series will trace her growth and change as her brain cells wake up the love cells. Game developer Goo Woong (Ahn Bo Hyun), and her co-workers Ruby (Lee Yoo Bi) and Seo Sae Yi (Park Ji Hyun), help in their own ways to revive her love cells.


Main Cast

Kim Go Eun as Kim Yoo Mi
Ahn Bo Hyun as Goo Woong
– Jun Ho Young (전호영) as Goo Woong (teen)

Daehan Noodles

Lee Yoo Bi as Ruby
Minho as Wook
Mi Ram as Lee Da
Jung Soon Won as Chief Nam

SLW Studio

Park Ji Hyun as Seo Sae Yi
Joo Jong Hyuk (주종혁) as Louis

Yoo Mi’s Cells

Ahn So Yi (안소이) as Love Cell voice
Park Ji Yoon (박지윤) as Emotional Cell voice
Shim Kyu Hyuk (심규혁) as Rational Cell voice
Lee Jang Won (이장원) as Hunger Cell voice
Ahn Young Mi as Naughty Cell voice
Jung Jae Hun (정재헌) as Detective Cell voice
Kim Yun Woo (김연우) as Fashion Cell voice
Uhm Sang Hyun (엄상현) as Hysteria Cell voice
Sa Moon Young (사문영) as Anxiety Cell voice
Sa Moon Young (사문영) as Inner Feeling Cell voice
Jung Jae Hun (정재헌) as Rampage Cell voice
Sa Moon Young (사문영) as Fussy Cell voice
Jung Jae Hun (정재헌) as Lullaby Cell voice
Ahn So Yi (안소이) as Cheapskate Cell voice
Ahn So Yi (안소이) as Reaction Doll No.1 voice

Koo Woong’s Cells

Uhm Sang Hyun (엄상현) as Rational Cell voice
Jung Jae Hun (정재헌) as Humor Cell voice


Jin Young as Yoo Bobby

Production Credits

Production Companies: Studio Dragon, Merrycow Creative, Studio N, Locus Corporation (Animation)
Director: Lee Sang Yeob
ScriptWriter: Kim Yoon Joo, Kim Kyung Ran

Episode Ratings

Date Episode AGB TNmS
2021-09-17 1 2.072 -
2021-09-18 2 2.390 -
2021-09-24 3 1.871 -
2021-09-24 4 2.545 -
2021-10-01 5 2.036 -
2021-10-02 6 2.384 -
2021-10-08 7 2.089 -
2021-10-09 8 2.093 -
2021-10-15 9 2.660 -
2021-10-16 10 2.312 -
2021-10-22 11 1.906 -
2021-10-23 12 2.340 -
2021-10-29 13 2.037 -
2021-10-30 14 2.485 -

Sources: TNmS Media Korea & AGB Nielsen Korea (Nationwide)

*** Note: This drama is aired on Pay-TV channel which has fewer viewers than Free-TV channels. So, please don’t be surprised with the low rating. ***


Official Site

Official Poster

Trailer I
Trailer II
Trailer III

Watch Online in Viki.com


  1. 1 : Lynnn Says:

    Kim go eun is so ugly

  2. 2 : ervina irfareza Says:

    21MPH Moviemania21

  3. 3 : Kaleem Ullah Says:

    Watch Full Episode of Yumi’s Cells with eng sub here https://dramacool.wiki/category/yumis-cells/

  4. 4 : dramafanatic Says:

    funny and im excited to see the coming episodes

  5. 5 : Yumi Ah Says:

    I never used to like Kim go eun but start to like her here. She has a different, pure look that is unique, not flower vase typical long curled hair look.
    Love to watch Bo Hyun. He is so damn attractive, hope he has more dramas as lead. He acts out Woong to the point. Saw him in I live alone, so man, so healthy good looks n living

  6. 6 : Violet Says:

    The drama is funny and there is a lot we can think about our reactions, emotions, etc.
    When I see the low ratings, I am very surprised, even if I know that we speak about paid channel…

  7. 7 : Ali Says:

    I enjoyed it, but I wanted them to stay together:(
    I hope in season 2 they fight for their love.

  8. 8 : florian borromeo Says:

    I love this drama….rollercoaster feelings because you will laugh in between episodes and then you cry…It’s like I travelled back to my younger years….a must watch Korean drama…

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