Original
01/09/2021 - 02/27/2021 Finished
Hataraku Saibou!! (はたらく細胞!!)
Also known as: Cells at Work!!
The cells of the human body never rest for too long; there is always something new to do and learn every day. At least, that is 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 is 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 is just another normal day for these hardworking cells!
21
Total episodes
21
Canon episodes
0
Filler episodes
0%
% Filler
Canon episodes · 21 Filler episodes · 0
Every season
Seasons and sequels
You may wonder, how many seasons does Hataraku Saibou!! have? Well, currently Hataraku Saibou!! has a total of 2 official seasons. Below is a complete list of the anime's seasons, arranged chronologically, including prequels, sequels, and canonical spin-offs.
Discover all seasons and episodes of this anime in broadcast order. Each season develops a key part of the story, introducing new characters, story arcs, and important events. Select any season to view detailed information such as the number of episodes, release dates, and a complete plot description.
Original
SecuelaWhat to watch, what to skip
Watch order: filler vs canon
You're in luck! Hataraku Saibou!! doesn't have a single filler episode: all 21 episodes are canon. It's a faithful adaptation of the original manga, so you can enjoy it from first to last without skipping anything or checking any list of expendable episodes.
The 21 episodes of Hataraku Saibou!! aired in 2021 and follow the story's chronological order. There are no transition episodes, no needless recaps, no arcs invented by the studio: every chapter advances the main plot and develops the characters just as the source material does.
In short, the watch order for Hataraku Saibou!! is as simple as it gets: start at episode 1 and keep going to episode 21 without detours. If you came looking for which Hataraku Saibou!! episodes are filler so you could skip them, the answer is that there aren't any.
Episode by episode
Complete guide by season
21 Episodes
| # | Episodes | Aired | Type |
|---|---|---|---|
| 1 | Bump01/09/2021 | 01/09/2021 | Canon |
| 2 | Acquired Immunity/Peyer's Patch01/16/2021 | 01/16/2021 | Canon |
| 3 | Dengue Fever/Acne01/23/2021 | 01/23/2021 | Canon |
| 4 | H. Pylori/Antigenic Shift01/30/2021 | 01/30/2021 | Canon |
| 5 | Cytokines02/06/2021 | 02/06/2021 | Canon |
| 6 | Harmful Bacteria02/13/2021 | 02/13/2021 | Canon |
| 7 | Cancer Cell II (Part I)02/20/2021 | 02/20/2021 | Canon |
| 8 | Cancer Cell II (Part II)02/27/2021 | 02/27/2021 | Canon |
| 9 | Thymocyte— | — | Canon |
| 10 | Staphylococcus Aureus— | — | Canon |
| 11 | Heat Stroke— | — | Canon |
| 12 | Hemorrhagic Shock Part 1— | — | Canon |
| 13 | Hemorrhagic Shock Part 2— | — | Canon |
| 14 | Bump— | — | Canon |
| 15 | Acquired Immunity/Peyer's Patch— | — | Canon |
| 16 | Dengue Fever/Acne— | — | Canon |
| 17 | H. Pylori/Antigenic Shift— | — | Canon |
| 18 | Cytokines— | — | Canon |
| 19 | Harmful Bacteria— | — | Canon |
| 20 | Cancer Cell II (Part I)— | — | Canon |
| 21 | Cancer Cell II (Part II)— | — | Canon |
Verified legal platforms
Where to watch Hataraku Saibou!!
All the platforms where you can watch Hataraku Saibou!! legally, with direct links to each service.
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Common questions
Frequently asked questions
How many seasons does Hataraku Saibou!! have?
Hataraku Saibou!! has a total of 2 seasons. The series is completed. Each season is divided into multiple episodes with stories that advance the main plot of the anime.
How many episodes does Hataraku Saibou!! have?
In total, Hataraku Saibou!! has 21 episodes distributed across its 2 seasons. You can consult the complete episodes table to see the breakdown by season.
What is the best order to watch Hataraku Saibou!!?
It is recommended to watch Hataraku Saibou!! in chronological broadcast order. This means starting from season 1 and continuing sequentially to the last season. Check our watch order guide which includes information about filler vs canon episodes for an optimal experience.
Where can I watch Hataraku Saibou!! online?
Hataraku Saibou!! is available on the following streaming platforms: Crunchyroll. Check the platforms section at the top of this page to access where you can watch the anime. Please note that availability may vary depending on your geographic region.
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Is Hataraku Saibou!! a complete anime?
Yes, Hataraku Saibou!! is a completed anime. All seasons have already aired and you can enjoy the series in its entirety without waiting for new episodes.
How much filler does Hataraku Saibou!! have?
No, Hataraku Saibou!! does not have filler episodes. All its episodes are canon and faithfully follow the original manga story, so you can watch all episodes without worrying about skipping anything.
Where can I see Hataraku Saibou!!'s score and reviews on MyAnimeList?
You can check the score, reviews, characters and statistics for Hataraku Saibou!! directly on MyAnimeList, the world's largest anime database. There you'll find the community rating, global ranking and opinions from other fans.