Hataraku Saibou

Cells at Work!

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Alternative Titles

Japanese: はたらく細胞
English: Cells at Work!
German: Cells at Work!!
Spanish: Cells at Work!
French: Cells at Work!
More titles


Type: TV
Episodes: 13
Status: Finished Airing
Aired: Jul 8, 2018 to Sep 30, 2018
Premiered: Summer 2018
Broadcast: Sundays at 00:00 (JST)
Licensors: Aniplex of America
Studios: David Production
Source: Manga
Genre: ComedyComedy
Themes: AnthropomorphicAnthropomorphic, EducationalEducational, MedicalMedical
Demographic: ShounenShounen
Duration: 23 min. per ep.
Rating: PG-13 - Teens 13 or older


Score: 7.561 (scored by 295051295,051 users)
1 indicates a weighted score.
Ranked: #15072
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #307
Members: 602,848
Favorites: 2,193

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Preliminary Spoiler
Sep 29, 2018
"The human body is the best work of art." - Jess C. Scott

Science is the study of everything around us. From the early stages of our universe, to the ancient civilizations in the past that leads us to our modern and technological society. Then we come to society. What makes a society even? The people. Humanity have transcended and evolved for generations and generations and will continue evolving like an endless cycle of life.
What does a human compose of? Cells, organs, organ system, tissues, atoms, molecules, ions and so on and so forth. This things, particularly the cells, are the ones that keeps on giving ...
Jul 28, 2018
Preliminary (4/13 eps)
Cells At Work is an educational series about how the human body functions on cellular level. Its source material was originally released in the Japanese science magazine called Gross Biological Stuff and Geeky Nerdy Shit Weekly, now made into an anime format to ensure the misinformation of this shonen comedy reaches a wider audience.

I refuse to use the reddit meme phrase ""as a" biology major" to back up my rhetoric with titles -- moreover, majoring biology requires bit more than reading 3 wikipedia articles about cells -- so instead I will say this series has a pretty interesting take on something that could be ...
Jul 28, 2018
Preliminary (4/13 eps)
(I’ll only be keeping my review short and brief as only 4 episodes have been released as I write this)

As a nursing student who has had to take microbiology, anatomy, and immunology classes and such I have to say I'm quite surprised as to how accurate and informative this anime is whilst being able to have a laugh at the way they portray formed elements and bacteria as characters and the landscape of the different transportation systems and organs in the body.

This anime is great and I highly recommend it to anyone, especially if you're looking to learn about cell biology-although I believe it'd ...
Sep 29, 2018
Mixed Feelings
Hataraku Saibou or Cells at Work has been highly praised despite his lack of story and the lack of characters just because it's unique and innovative.
If Hataraku Saibou can do something is to show that originality is not a guarantee of a good anime.
The show lacks something that i still cannot precisely explain. After the initial shock you quickly realize that despite its originality this anime is incredibly generic (does that make sense? i dunno but thats how i felt while watching this).

Story: There is no story, this is kind of a simpsons slice of life where at the end of the day everything is ...
Sep 29, 2018
It’s almost impossible to ignore biology when it comes to the human body. Hataraku Saibou (Cells at Work!) has the confidence to be its own series. It’s like you take the cartoony Osmosis & Jones and turns it into an educational exploration. The human body is complex and that alone really made me wonder how this show could capture its magic.

I’d say making this show takes a creative mind and the audience should feel connected when watching this anime. Right from the start, the show reveals the human body and what it’s made up of which is essentially red blood cells. It takes place in ...
Sep 29, 2018
This series was one of the most unique ones that most have been anticipating since the start of the year, and when it arrived in the lackluster Summer season, aside from the certainty that does not disappoint, it is entertaining to the mildest degree, while having a lot of *pokes* at the function of the most important system: us human beings.

Now, I don't care that whether you have studied subjects that are close to this, but I'm fairly certain that no matter our background as people whom have learned about cells in one way or another, Hataraku Saibou, or Cells at Work!, will definitely please ...
Sep 29, 2018
The Summer season of 2018 seemed to rely heavily on original adaptations when compared to the previous seasons of the same year, especially Spring, when more than half of the top ten most popular anime on this site were sequels. Various well-received returning and continuing anime fought for the position of best show of the cour, all of them with very high ratings; but new releases also held up competently, bringing both classic manga and recent visual and light novels to the screen, along with its fair share of originals. Among the new names of Summer 2018, Hataraku Saibou (Cells at Work!) deservedly warranted much ...
Aug 4, 2018
Mixed Feelings
Preliminary (3/13 eps)
The first episode and the community hype gives you a lot of hope. But other than the interesting concept (well, it's not that new, even Osmosis Jones did it), the show is very cliche, has no story (more slice of life), and the characters all basic.

Before you go on hating this review because this show is your new favourite anime, please give it a minute.

There have been 5 episodes, and they all have the same storyline.
Something harmful enters the body.
Scares the Red Blood Cell girl.
The White Blood Cell guy comes to save her.
The enemy is stronger than expected (some biological explanation).
Some new cell ...
Aug 26, 2018
Preliminary (7/13 eps)
This is one of the laziest shows I've ever seen.

Lazy characters. The main characters are each one of the cells of your immune system: red blood cell, white blood cell, etc. There is little reason to care about any of them, because they act similarly to their comrades and lack any defining traits that separates them from the trillions of cells like them. And any minuscule defining traits these characters show are being incompetent at their jobs or having backstories that don't matter in the slightest in regards to their development.

Lazy setting. Before we stray too far away from the topic of how many cells ...
Apr 7, 2019
Mixed Feelings
Hataraku Saibou is an abstract interpretation of how the human body operates as a system, portraying the human body as a society of people (or rather cells) in which all these people have certain tasks to do. This system is constantly under attack, with the main drive of the series being to showcase how this society endures all of the threats placed upon it. There's not exactly a market for this type of show since biology, an exact science, represented as an abstract concept, by being rebuilt into a system that retains the basic notions within the exat science and changed into something else, is ...
Jul 29, 2018
Mixed Feelings
Preliminary (4/13 eps)
Cells at Work is a mediocre/slightly above-average show that gets by solely on it's gimmick, that gimmick being that it takes place in the body and follows the various biological functions, but with personified cells.

When you first go through the show you might find that it's plenty of fun. The mere gimmick itself got me to episode 4, but the show's writing wouldn't find itself out of place in a stereotypical 5/10 shounen show. It becomes so cliche at point that I found myself cringing a bit, especially in this fourth episode. The show does a lot of fun things with it's setting but ...
Oct 6, 2018
Mixed Feelings
While there is no denying that Hataraku Saibou is unique and innovative, people seem to believe this, by itself, makes it a great anime. It does not.

Don't get me wrong, I enjoyed this anime, and thought it would be a great idea to teach kids about biology, but the anime itself is lackluster.

Story: 4/10
A slice of life anime that follows the daily activities of a red and white blood cell. We get to see in detail how the body reacts to different problems and learn more about how the body works. HS gets points for accurate biology and for a novel idea, but unlike your ...
Jul 30, 2018
Preliminary (4/13 eps)
This is my first review so it's probably not going to be that good, but I'll try.

First off I'd like to say that I've always had a love for media that takes a concept and personifies it, and I also have a fascination for biology, so this anime was already perfect for me. The comedy is hilarious and I found myself laughing a lot of times, which I don't tend to do with most comedies.

Story: 9
There isn't much of a standard story, of course, the basic is that we follow the cells in our body, working in their special fields, in a city-like setting.
But the ...
Jul 29, 2018
Preliminary (4/13 eps)
Like always when i write a review i Make it clear i don't speak Englsih i have mistake like a person that only learn English alone and help of nobady

Hataraku Saibou is a nime that form is one of the best of this season because is very funny , learn about my body , i did learn about on the function of white blood cells, hemoglobins, spleen, etc. In just 4 episodes so it goes something I never learned in 5 months in my school . Each day i'm more than studying medicine xD

Good about characters my favorite is U-1146 because ...
Jul 28, 2018
Preliminary (4/13 eps)
This anime tells the story of red blood cell AE3803, Red blood cell U-1146, and many other cells all working together to keep your body safe. Through explanation and dramatic scenes it will teach you how your body works and draw you into a fascinating tales of cells at work.

This anime will completely change the way you view your cells, and how you live your daily life. It will tell you stories of all the cells as they help to heal you, and to protect you from germs, all the while entertaining you with adorable and unique characters, all with their own charm.

I am fully ...
Aug 19, 2018
Preliminary (7/13 eps)
Nearly ignorant of biology,I’m much obliged to はたらく細胞 for imparting me those biological knowledge about our body ,cells and innards,etc in such a colourful ,informative and appealing way.As for me,I don’t agree this anime should be categorized into pseudo-science.Because there is no convincing evidence showing its presentation of biological education is erroneous as yet.Abd we are still not too retarded to be devoid of the faculty for identifying the practice of anthropomorphism,that is to say,we certainly know the silhouette of cells are not human-like,and bacteria are not actually into the way like the intellectual aliens.If an anime bound up with science education could manage to ...
Aug 19, 2018
Preliminary (7/13 eps)
It's "Once Upon a Time... Life" + genocides&kawaii, all made by the JoJo animation team.

You don't need anything else.
No kidding, whatever I'm gonna write from now on is pointless, since I've already given you all the reasons to watch it.

You remember that french cartoon that used to teach us how the human body was, from muscles to viruses, from vaccines to leukemia?
"Siamo Fatti Così/Esplorando il Corpo umano" in Italy, "Il était une fois... la Vie" in France, "Érase una vez... la Vida/Érase una vez... el cuerpo humano" in the hispanic world, "Es war einmal … das Leben" in Germany, "人體大奇航" in China.
Unless you're too ...
Oct 14, 2018
Hataraku Saibou might be one of if not the best educational anime out there. While feeding you information on a pretty wide variety of biology and anatomy related topic it managed to mix it with a healthy dose of comedy, action and drama without feeling any of those feeling tacked on.

The show revolves around a human body being represented as one huge city, inside which the human looking cells diligently go about doing their jobs the keep everything in good condition. Just from this it should be clear that there’s plenty of artistic license taken when it comes to depicting a human body and everything ...
Apr 1, 2020
Mixed Feelings
I don't think I've ever seen a more average anime than Cells at Work. The art is average, the sound is average, the writing is average (from a literary perspective), the characters are average, the themes are average, just everything.

Obviously, I wasn't expecting Legend of the Galactic Heroes when I started watching Cells at Work though, so I can't complain about its average-ness. I didn't watch it for the plot. The highlight of Cells at Work is its educational content. Cells at work entertainingly teaches you microbiology. It should win a Nobel Prize for doing that.

Cells at work teaches the viewer the essential ...
Oct 4, 2018
Mixed Feelings
Just personal scratch.
Advised, possible spoilers.
Opinion & Informal

Art: 5/10 I wasn't too impressed by the art. It was fine at times and it was sort of just bad at other times. For example, one of the few instances where I thought the art wasn't up to par was episode 10 with the (I forgot the exact name) with the hazmat suit character (later finding out it's just macrophage). If you want to take a look, during the foot bath/drinking chug by hazmat suit cell, just look at how that was drawn. Almost zero dimensionality and shading. You can even see they dropped frames during the chug ...