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KstarPick
Yumi's Cells Season 3 (2026)

Yumi's Cells Season 3 (2026)

7.8Comedy · Romance · Life · Drama

After quitting her job, Yu Mi became a star writer at the peak of her fame, with her "Writer Cell" taking charge over "Love Cell." But the sweetness of success doesn’t last forever. Her days soon turn dull and monotonous until a man named Sun Rok steps into her life. Facing this younger man, Yu Mi discovers a new kind of love — unexpected, disarming, and deeply stirring. Once a common to-go girl in her 30s, Kim Yu Mi is now a celebrated romance novelist. But with no more new goals or challenges, her cells have fallen asleep, leaving her days lifeless—until Sun Rok appears. Yu Mi learns that even a star romance writer can be a total rookie when it comes to real love. Sin Sun Rok, an editor in his 20s at Julie Publishing, is all about facts, logic, and boundaries, feeling perfectly relaxed when staying home alone. But as Yu Mi starts to invade his world, he draws a line—only to find himself slowly, irresistibly, falling for her. (Source: CJ ENM) ~~ Adapted from the webtoon "Yumi's Cells" (유미의 세포들) by Lee Dong Geon (이동건).

[유미의 세포들 시즌3] 순록이의 저전력 모드가 꺼지는 순간!💡ㅣ순록 On-Off 티저ㅣTVINGㅣYumi’s Cells 3

Synopsis

After quitting her job, Yu Mi became a star writer at the peak of her fame, with her "Writer Cell" taking charge over "Love Cell." But the sweetness of success doesn’t last forever. Her days soon turn dull and monotonous until a man named Sun Rok steps into her life. Facing this younger man, Yu Mi discovers a new kind of love — unexpected, disarming, and deeply stirring. Once a common to-go girl in her 30s, Kim Yu Mi is now a celebrated romance novelist. But with no more new goals or challenges, her cells have fallen asleep, leaving her days lifeless—until Sun Rok appears. Yu Mi learns that even a star romance writer can be a total rookie when it comes to real love. Sin Sun Rok, an editor in his 20s at Julie Publishing, is all about facts, logic, and boundaries, feeling perfectly relaxed when staying home alone. But as Yu Mi starts to invade his world, he draws a line—only to find himself slowly, irresistibly, falling for her. (Source: CJ ENM) ~~ Adapted from the webtoon "Yumi's Cells" (유미의 세포들) by Lee Dong Geon (이동건).

Reviews
7.8
5 reviews
Acting/Cast
0
Music
0
Story
0
Rewatch Value
0
Comments 5
YoumnaR

YoumnaR의 리뷰

androide

soo, i really like sunrok as a character and also relate to him a lot, but he doesn't seem the right person for yumii know its probably a cultural thing but all the drama that yumi had with him on the first few episodes seems a lot for me and doesn't make sense, for the first time i almost didn't stand yumi's character (probably because i took it personal as i really relate to sunrok)also, i think the age gap is being overlooked in other people's opinions, which is also another thing that makes me uncomfortable about the story right nowfinally i really hate juho's character a lot i almost drop the drama so i really hope it gets better on the last two episodes

lurkingshan

I am speaking purely as a drama watcher here - I am aware there is a whole fandom for the source material and I’ve never read it. I have no idea how close or far this might be to the original story and whether fans feel the ML is portrayed as they hoped. So with that established, what a letdown this is for me as the final chapter in Yumi’s story. This is the guy I’m supposed to think should be her forever person? I don’t find him unsympathetic—I actually relate to him a lot—but they’re not selling me on the romance at all. There’s so little spark or energy between them, he’s hot and cold with her in a way I do not find at all endearing, and most importantly his personality and communication style just seems like a bad fit for her emotional needs. I don’t believe in this romance at all, and with only two episodes left I don’t think I’ll get there by the end of the story. Other aspects of this are frustrating, as well - the side plot with the other writer is repetitive and annoying, some of Yumi’s own behavior is ridiculous, and it even feels like the writers have lost their touch wrt writing smart and witty lines for the cells. As a huge fan of the first season, I am also finding it pretty irritating to hear OSTs from that love story used again here. It just feels all wrong. Disappointed to have waited so long for this.

Videos: Trailer & Teasers
[유미의 세포들 시즌3] 순록이의 저전력 모드가 꺼지는 순간!💡ㅣ순록 On-Off 티저ㅣTVINGㅣYumi’s Cells 3
[유미의 세포들 시즌3] 무미건조했던 유미의 일상에 찾아온 설렘!💗ㅣ유미 On-Off 티저ㅣTVINGㅣYumi’s Cells 3
[유미 On-Off 티저] 고요하던 유미의 심장이 말랑해지기 시작했다🫧 돌아온 세포들과 김고은의 새로운 챕터 시작✨ #유미의세포들시즌3 EP.0
[유미의 세포들 3] 벼락같은 미소에 잠들었던 세포들이 깨어났다 💓ㅣ메인 예고ㅣTVINGㅣYumi’s Cells 3
[메인 예고] 순록(a.k.a 제철 빡돔)이 점점 신경 쓰이는 유미😚 김고은x김재원에게 찾아온 설렘🌸 #유미의세포들시즌3 EP.0
Cast
Kim Go Eun

Kim Go Eun

Kim Yu Mi

Kim Jae Won

Kim Jae Won

Sin Sun Rok

Jeon Seok Ho

Jeon Seok Ho

An Dae Yong [Julie Literature editor-in-chief]

Choi Daniel

Choi Daniel

Kim Ju Ho [Julie Literature representative writer]

Cho Hye Jung

Cho Hye Jung

Baek Na Hui [Yu Mi’s assistant writer]

Mi Ram

Mi Ram

Kang I Da [Dae Yong’s wife]

Park Se In

Park Se In

Jang PD [Yu Mi’s superior]

Kim Sun Yool

Kim Sun Yool

Kim Su Jin (Ep. 1)

Lee Jong Goo

Lee Jong Goo

[Neighborhood man] (Ep. 1)

Hwang Chan Sung

Hwang Chan Sung

Yun PD [Yu Mi's manager] (Ep. 1)

Jung Soon Won

Jung Soon Won

Nam Ju Hyeok (Ep. 2)

Kim Yoon Joo

Kim Yoon Joo

Isabelle (Ep. 4)

Sung Ji Ru

Sung Ji Ru

Kim Man Sik [Yu Mi’s father]

Lee Yoo Bi

Lee Yoo Bi

Lee Ruby

Yun Yu Sun

Yun Yu Sun

Hwang Yeong Sim [Yu Mi's mother]

G

omg the chemistry between the cast in these teasers is already incredible, can't wait

43m

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Synopsis

After quitting her job, Yu Mi became a star writer at the peak of her fame, with her "Writer Cell" taking charge over "Love Cell." But the sweetness of success doesn’t last forever. Her days soon turn dull and monotonous until a man named Sun Rok steps into her life. Facing this younger man, Yu Mi discovers a new kind of love — unexpected, disarming, and deeply stirring. Once a common to-go girl in her 30s, Kim Yu Mi is now a celebrated romance novelist. But with no more new goals or challenges, her cells have fallen asleep, leaving her days lifeless—until Sun Rok appears. Yu Mi learns that even a star romance writer can be a total rookie when it comes to real love. Sin Sun Rok, an editor in his 20s at Julie Publishing, is all about facts, logic, and boundaries, feeling perfectly relaxed when staying home alone. But as Yu Mi starts to invade his world, he draws a line—only to find himself slowly, irresistibly, falling for her. (Source: CJ ENM) ~~ Adapted from the webtoon "Yumi's Cells" (유미의 세포들) by Lee Dong Geon (이동건).

Reviews0

0.0
10

Overall Rating

(0 reviews)

Rating Distribution

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Featured Reviews

9.5
ZuitSu007
4월 29일

A CUTE INTROVERTED LOVE STORY

I’ve honestly not watched Yumi’s Cells 1 & 2, but Yumi’s Cells 3 hit me differently, it really ended up clicking with me.Yumi’s Cells 3 is essentially a love story between two introverted individuals. Yumi, who is now a successful writer, seems to live her life in a very dull and monotonous way. There’s nothing in her life that creates enough emotional ripples to truly shake her, until she meets Shin Sun Rok PD. He disrupts her life in ways she hasn’t experienced in years.Ever since her success as a writer and her breakup with her previous boyfriend, both her love life and her overall life have become stagnant. This stagnation has made her very calm and rational, to the point where her Writer Cell has taken over, while her emotional cells , especially her Love Cell have gone dormant.However, her encounter with Shin PD changes everything. Interestingly, he is even more calm and rational than she is. He struggles with social cues and ends up unintentionally riling Yumi up in ways he doesn’t even realize.Their first meeting is incredibly awkward. He mostly responds with “yes” or “no,” and during their bus ride together, he puts on earphones, which Yumi perceives as disrespectful. Ironically, she had wanted to do the same earlier due to the awkwardness but held herself back out of courtesy. When he goes ahead and does it, she feels annoyed—for the first time in years.This annoyance continues in small but significant moments. For example, when he buys all the bungeoppang (fish-shaped bread filled with sweet paste) from a shop Yumi regularly visits, especially her favorite flavor it frustrates her even more. Another instance is when he questions the intelligence of Maltese dogs. This deeply irritates Yumi because she has grown attached to a Maltese dog named Coco, her friend’s pet that she’s been taking care of. Hearing such criticism from Shin PD pushes her irritation to another level.Through these interactions, we see her dormant emotions begin to awaken, her hate cells and other emotional cells start coming out of dormancy. Up until Episode 2, it genuinely feels like she dislikes Shin PD intensely. However, things begin to shift during their work trip to Busan, where she starts seeing him in a different light.What stood out to me the most is how this drama gave strong “Inside Out” vibes. The concept of different “cells” representing Yumi’s emotions, decisions, and thoughts is beautifully executed. I especially love this first-person perspective approach, it allows us to see the depth of the characters rather than just surface-level events, which is often the case in many dramas.What made me appreciate it even more is that we don’t just see Yumi’s perspective, we also get Shin PD’s point of view. We get to understand what he’s thinking, why he behaves the way he does, and how his intentions can be very different from how his actions are perceived. This dual perspective feels incredibly human. After all, aren’t we all like this? We think and act with certain intentions, but they may come across entirely differently to others.That’s the beauty of this drama, it’s not just a narrative from the female lead, male lead, or writer’s perspective. Instead, it presents a deeply personalized approach, giving us insight into both sides of the story.For example, when we see Shin PD’s perspective, we learn that he is an extreme introvert with a very low social battery. He relies heavily on his rational and calm side to navigate his daily life, and it’s only at night, when he returns home, that he truly relaxes and recharges. Many of the moments where he offends Yumi are not intentional, they stem from his limited social energy and difficulty expressing himself.Overall, I’m really looking forward to how the story unfolds in the upcoming episodes and how their relationship develops further. 🤗

22
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7
YoumnaR
4월 29일

YoumnaR의 리뷰

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10
AhnYonaKissMe
4월 29일

I am biased. I love it.

I loved the season 1& season 2. I love Kim Go Eun so much. And I love the webtoon.So... I am biased. I waited so long for this. I didn't have any hopes of season 3 for so long. That's why I feel like this is a gift and I should cherish it. That's why I am biased. But I really like SunRok. I think Jae Won is doing a good job portraying him. I am sad about the fact that they gave to Babi a lot of things from SunRok's storyline. But I have hopes that they will make up for it. I watched the first 4 episodes, I realized I really missed Yumi and the cells. I rewatched season 1 and 2, after that. I am really looking forward to Yumi's happy ending.I think I would enjoy season 3 regardless. It's my cup of tea. So far, everything is good.

9
Read more
7
lurkingshan
4월 29일

A long awaited letdown

I am speaking purely as a drama watcher here - I am aware there is a whole fandom for the source material and I’ve never read it. I have no idea how close or far this might be to the original story and whether fans feel the ML is portrayed as they hoped. So with that established, what a letdown this is for me as the final chapter in Yumi’s story. This is the guy I’m supposed to think should be her forever person? I don’t find him unsympathetic—I actually relate to him a lot—but they’re not selling me on the romance at all. There’s so little spark or energy between them, he’s hot and cold with her in a way I do not find at all endearing, and most importantly his personality and communication style just seems like a bad fit for her emotional needs. I don’t believe in this romance at all, and with only two episodes left I don’t think I’ll get there by the end of the story. Other aspects of this are frustrating, as well - the side plot with the other writer is repetitive and annoying, some of Yumi’s own behavior is ridiculous, and it even feels like the writers have lost their touch wrt writing smart and witty lines for the cells. As a huge fan of the first season, I am also finding it pretty irritating to hear OSTs from that love story used again here. It just feels all wrong. Disappointed to have waited so long for this.

2
Read more
6
androide
4월 29일

kinda disappointed so far

soo, i really like sunrok as a character and also relate to him a lot, but he doesn't seem the right person for yumii know its probably a cultural thing but all the drama that yumi had with him on the first few episodes seems a lot for me and doesn't make sense, for the first time i almost didn't stand yumi's character (probably because i took it personal as i really relate to sunrok)also, i think the age gap is being overlooked in other people's opinions, which is also another thing that makes me uncomfortable about the story right nowfinally i really hate juho's character a lot i almost drop the drama so i really hope it gets better on the last two episodes

1
Read more

Videos: Trailers & Teasers

[유미의 세포들 시즌3] 순록이의 저전력 모드가 꺼지는 순간!💡ㅣ순록 On-Off 티저ㅣTVINGㅣYumi’s Cells 3
[유미의 세포들 시즌3] 무미건조했던 유미의 일상에 찾아온 설렘!💗ㅣ유미 On-Off 티저ㅣTVINGㅣYumi’s Cells 3
[유미 On-Off 티저] 고요하던 유미의 심장이 말랑해지기 시작했다🫧 돌아온 세포들과 김고은의 새로운 챕터 시작✨ #유미의세포들시즌3 EP.0
[유미의 세포들 3] 벼락같은 미소에 잠들었던 세포들이 깨어났다 💓ㅣ메인 예고ㅣTVINGㅣYumi’s Cells 3
[메인 예고] 순록(a.k.a 제철 빡돔)이 점점 신경 쓰이는 유미😚 김고은x김재원에게 찾아온 설렘🌸 #유미의세포들시즌3 EP.0

Cast

Kim Go Eun

Known for roles in Korean dramas and films

Kim Go Eun

Kim Yu Mi

Kim Jae Won

Known for roles in Korean dramas and films

Kim Jae Won

Sin Sun Rok

Jeon Seok Ho

Known for roles in Korean dramas and films

Jeon Seok Ho

An Dae Yong [Julie Literature editor-in-chief]

Choi Daniel

Known for roles in Korean dramas and films

Choi Daniel

Kim Ju Ho [Julie Literature representative writer]

Cho Hye Jung

Known for roles in Korean dramas and films

Cho Hye Jung

Baek Na Hui [Yu Mi’s assistant writer]

Mi Ram

Known for roles in Korean dramas and films

Mi Ram

Kang I Da [Dae Yong’s wife]

Park Se In

Known for roles in Korean dramas and films

Park Se In

Jang PD [Yu Mi’s superior]

Kim Sun Yool

Known for roles in Korean dramas and films

Kim Sun Yool

Kim Su Jin (Ep. 1)

Lee Jong Goo

Known for roles in Korean dramas and films

Lee Jong Goo

[Neighborhood man] (Ep. 1)

Hwang Chan Sung

Known for roles in Korean dramas and films

Hwang Chan Sung

Yun PD [Yu Mi's manager] (Ep. 1)

Jung Soon Won

Known for roles in Korean dramas and films

Jung Soon Won

Nam Ju Hyeok (Ep. 2)

Kim Yoon Joo

Known for roles in Korean dramas and films

Kim Yoon Joo

Isabelle (Ep. 4)

Sung Ji Ru

Known for roles in Korean dramas and films

Sung Ji Ru

Kim Man Sik [Yu Mi’s father]

Lee Yoo Bi

Known for roles in Korean dramas and films

Lee Yoo Bi

Lee Ruby

Yun Yu Sun

Known for roles in Korean dramas and films

Yun Yu Sun

Hwang Yeong Sim [Yu Mi's mother]

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