Hataraku Saibou!!

Cells at Work!!

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Alternative Titles

English: Cells at Work!!
Synonyms: Cells at Work! 2nd Season, Hataraku Saibou 2nd Season
Japanese: はたらく細胞!!


Type: TV
Episodes: 8
Status: Finished Airing
Aired: Jan 9, 2021 to Feb 27, 2021
Premiered: Winter 2021
Broadcast: Saturdays at 23:30 (JST)
Licensors: Aniplex of America
Studios: David Production
Source: Manga
Genre: ComedyComedy
Demographic: ShounenShounen
Duration: 23 min. per ep.
Rating: PG-13 - Teens 13 or older


Score: 7.321 (scored by 5902259,022 users)
1 indicates a weighted score.
Ranked: #23032
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #850
Members: 209,102
Favorites: 482

External Links

Ranked #2303Popularity #850Members 209,102
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The cells of the human body never rest for too long; there's always something new to do and learn every day. At least, that's what Hakkekkyuu U-1146 feels as he rushes to and fro, searching for any pathogens that could cause harm to the body. Despite his dangerous line of work, it's all worth it to protect the happy smiles of Sekkekkyuu AE3803, the platelet crew, his fellow neutrophils, and the other cells he meets along the way.

In his latest pathogen-hunting adventures, Hakkekkyuu U-1146 discovers how important cells can sometimes make mistakes, and that not all bacteria are actually bad. Everybody has their bad days, but everything eventually works out when their comrades have their backs. In the end, it's just another normal day for these hardworking cells!

[Written by MAL Rewrite]


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Episode Videos

Manga Store

Related Anime

Characters & Voice Actors


Ogura, Hirofumi
Ueno, Takehiro
Episode Director, Storyboard
Kakihara, Yuuko
Kobayashi, Yuusuke
Theme Song Performance


Opening Theme

Apple Music
Amazon Music
Youtube Music
"GO! GO! Saibou Fiesta" by Sekkekkyuu (Kana Hanazawa), Hakkekkyuu (Tomoaki Maeno), Killer T Saibou / Memory T Saibou (Daisuke Ono), Macrophage (Kikuko Inoue), Ippan Saibou (Yuusuke Kobayashi), Nyuusankin (Yuuri Yoshida)

Ending Theme

"Fight!!" by ClariS

Feb 25, 2021
slavemaster_1991 (All reviews)
TLDR: if you liked the first season - you will most likely like this one. If you did not - don't waste time.

Story: basically it is more of the same stuff, out cells doing their work and overcoming different situations. It is really nothing much to speak about, considering this season is only 2/3 of a normal season in length.
Art, sound: the same as S1, solid but nothing stellar.
Characters: once again, more of the same. Most of the characters were already established in the first season (or at least had episodical role), so you know what to expect. No real character progression if by read more
Feb 25, 2021
KANLen09 (All reviews)
I feel like this show needs no introduction for the myriad of you who've watched Season 1 way back in 2018. The TL;DR is this: our favorite body cells are back at it again, resuscitating a healthy body from many of the immune diseases as inspired and suffering from real life, but giving it the anime flare and feel that's basically one and the same from Season 1.

The only reason why we have a Season 2 in times like now, is because the spin-off (which is Hataraku Saibou Black, or Cells at Work: Code Black) is chosen to air in Winter 2021, so both mangaka read more
Feb 25, 2021
d5202047 (All reviews)
There are a few episodes that sync up with Code Black, which aired at the same time. For example, both shows may talk about hair or something. So that might be more fun for you to watch both simultaneously.

Too many corners are cut in the animation department. CGI red blood cells walking around.
Educational value is decent except for the last two episodes which is nothing but action scenes and a bacteria that wears a fox fursuit.

Two episodes with platelets and a few more with the lactic acid bacteria. So you won't completely waste your time watching this, but you can tell they're trying read more
Feb 25, 2021
TheDegenerate (All reviews)
Season 2 is out and does it still hold up to season 1?
Short awnser:"Yes, yes it does". Its still kinda surprising how many people havent talked about this anime, like I know that Aot and JJK are airing but I did expect a bit more popularity but that doesnt really matter, because I like underated shows, so lets talk about the anime....

I am going to talk about season 1 and 2
"This review is spoiler-free"


The story is verry simple but verry compelling and fun to watch. It is a story about 2 bloodcells doing their work and talking to eachother and always have fun with eachother. read more

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