Hataraku Saibou Black

Cells at Work! CODE BLACK!

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Alternative Titles

Japanese: はたらく細胞BLACK
English: Cells at Work! CODE BLACK!
German: Cells at Work! Code BLACK
French: Les Brigades Immunitaires BLACK
More titles


Type: TV
Episodes: 13
Status: Finished Airing
Aired: Jan 10, 2021 to Mar 19, 2021
Premiered: Winter 2021
Broadcast: Sundays at 00:00 (JST)
Licensors: Aniplex of America
Source: Manga
Genres: ActionAction, DramaDrama
Themes: AnthropomorphicAnthropomorphic, EducationalEducational, MedicalMedical
Demographic: SeinenSeinen
Duration: 23 min. per ep.
Rating: PG-13 - Teens 13 or older


Score: 7.521 (scored by 7986679,866 users)
1 indicates a weighted score.
Ranked: #17902
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #1083
Members: 226,854
Favorites: 455

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Streaming Platforms

Ranked #1790Popularity #1083Members 226,854
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Episodes: /13


Due to poor lifestyle choices, a certain human's body is in constant turmoil. With germs, bacteria, and foreign substances abound, the jobs of various cells become increasingly difficult and dangerous. As some of the unfortunate ones who matured in this chaotic environment, Sekkekkyuu AA2153 and Hakkekkyuu U-1196 strive to fulfill their duties—even if it means seeing many of their fellow cells lose their lives in duty.

Set in an environment vastly different from its parent story, Hataraku Saibou Black portrays the cells' struggles as they try to maintain the body's health. However, the human's condition continues to deteriorate, and whether or not these efforts will amount to something concrete depends on the cells!

[Written by MAL Rewrite]

Characters & Voice Actors

Hakkekkyuu 1212

Uchiyama, Yumi


Tsuda, Kenjirou


Shiina, Hekiru

Hakkekkyuu 8787


Nou Saibou

Hirakawa, Daisuke



Opening Theme

Apple Music
Amazon Music
Youtube Music
"Hashire! with Seiya Yamasaki (Kyusonekokami) (走れ! with ヤマサキセイヤ(キュウソネコカミ))" by Hiroyuki Hayashi (Polysics) (ハヤシヒロユキ(POLYSICS))

Ending Theme

"Ue wo Muite Hakobou with Sekkekkyuu & Hakkekkyuu (上を向いて運ぼう with 赤血球・白血球)" by Hiroyuki Hayashi (Polysics) (ハヤシヒロユキ(POLYSICS))

Episode Videos


Mar 18, 2021
Hell yeah

Do you suffer from depression or do you want to fix your body? Well this is for you. Since you get to realize how much shit is going on in your body

Story: Unlike the original Cells at Work this is depressing. This tackles more depressing things just as alcoholism, excessive smoking, liver failure, heart attack and more. It is just a fun and depressing watch

Characters: Characters are pretty well done. Of course the waifu in this season is the white blood cell. Our main character himself is a hard worker which is respectable since the body is total shit

Music: OSt is good and the ...
Mar 21, 2021
Mixed Feelings
Not a whole lot to say about this one. If you enjoyed the regular Hataraku Saibou you'll most likely enjoy this one as well. Follows much the same premise though focuses more on how bad habits can negatively affect the body. It remains a fairly interesting and informative insight into the human physiology. The main cast are essentially genderbent from the original which is an interesting touch.

I did however find myself a little bored towards the end and didn't really care too much about the characters, but in fairness the setting kind of makes characters difficult to really get attached to.
Feb 8, 2021
Preliminary (4/13 eps)
Imagine the original Cells At Work, now revamp the characters and make the host body a stressed out, anxiety ridden person and create a new story based on the complications of stress and anxiety. It will be pretty clear if you will like the show or not by the first episode.

This is basically a darker version of the original cells at work, with very uninspired and overall flawed character and a decent alternate story and you have code black.

This is not an anime I am jumping out of my seat to recommend, its an average anime at best, I feel like you will know if ...

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Recent Forum Discussion

Poll: Hataraku Saibou Black (TV) Episode 13 Discussion ( 1 2 3 4 )
removed-user - Mar 18, 2021
160 repliesby Beguni »»
May 27, 8:54 AM
Poll: Hataraku Saibou Black (TV) Episode 1 Discussion ( 1 2 3 4 )
removed-user - Jan 7, 2021
178 repliesby Seraschi »»
May 14, 12:02 AM
Poll: Hataraku Saibou Black (TV) Episode 6 Discussion ( 1 2 )
removed-user - Jan 28, 2021
68 repliesby Destroyer31 »»
Apr 19, 9:55 PM
Poll: Do you love your body?
Shizuna - Apr 8
7 repliesby johnythepvpgod »»
Apr 12, 5:41 AM
Poll: Hataraku Saibou Black (TV) Episode 10 Discussion ( 1 2 3 )
removed-user - Feb 25, 2021
110 repliesby Penguinu »»
Jan 12, 1:06 AM