Hataraku Saibou!! Saikyou no Teki, Futatabi. Karada no Naka wa "Chou" Oosawagi!

Cells at Work!! The Return of the Strongest Enemy. A Huge Uproar in the Body’s Bowels!

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Alternative Titles

Synonyms: Cells at Work!!
Japanese: 『はたらく細胞!!』最強の敵、再び。体の中は“腸”大騒ぎ!
English: Cells at Work!! The Return of the Strongest Enemy. A Huge Uproar in the Body’s Bowels!
More titles


Type: Movie
Episodes: 1
Status: Finished Airing
Aired: Sep 5, 2020
Producers: Aniplex, Kodansha
Licensors: None found, add some
Studios: David Production
Source: Manga
Genres: ActionAction, ComedyComedy
Themes: EducationalEducational, MedicalMedical
Demographic: ShounenShounen
Duration: 1 hr. 55 min.
Rating: PG-13 - Teens 13 or older


Score: 7.321 (scored by 22332,233 users)
1 indicates a weighted score.
Ranked: #24322
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #4066
Members: 23,653
Favorites: 11

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Ippan Saibou is envious of the public praise immune system cells like white blood cells receive for protecting the human body from deadly pathogens. Instead of watching safely from his home, he also wants to be useful and get recognized for his efforts. He soon comes across a group of infantile-looking bacteria getting washed away by a river current. Despite knowing the potential dangers that they hold, he rescues the bacteria and brings them to safety. However, Hakkekkyuu U-1146 picks up the presence of these bacteria and is on the hunt for them.

Meanwhile, somewhere else in the human body is NK Saibou, who is on the lookout for someone. Based on her intel, he is an antigen that the immune system cells have previously encountered, and he may have returned for revenge.

[Written by MAL Rewrite]


The movie covers events from the fifth volume of the manga series.

Related Anime

Characters & Voice Actors


Ogura, Hirofumi
Aketagawa, Jin
Sound Director
Kakihara, Yuuko
Script, Series Composition
Suehiro, Kenichiro


Opening Theme

Apple Music
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Ending Theme

"Go! Go! Saibou Festa (GO!GO!細胞フェスタ)" 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)

Sep 8, 2020
UPDATE Feb. 2021: Looks like Season 2 Eps 4-7 cover this movie, so if you've already finished Season 2 of Hataraku Sabou, then there's not much need to watch this movie. Just want to put it out there to save everyone time!

TL;DR: A 2-hour-long episode that dials the cuteness up to 11, with more than a few good laughs. Does have pacing issues and recycled animations from the previous show. Overall very enjoyable, but felt a bit stretched out.

Since Hataraku Saibou is not a particularly story-driven series, I was wondering how they would try to make it into a 2-hour long movie. The answer was ...


Recent News

'Hataraku Saibou!!' Theatrical Episode Additional Cast Announced

'Hataraku Saibou!!' Theatrical Episode Additional Cast Announced

The official website for David Production's second season of Hataraku Saibou (TV) released a key visual (pictured) and trailer for the second season's upco...read more

Recent Forum Discussion

When will this movie's Blu-Ray drop?
Donime - Jan 7, 2021
12 replies by HibiChika »»
Jul 14, 11:14 AM
Poll: Hataraku Saibou!!: Saikyou no Teki, Futatabi. Karada no Naka wa "Chou" Oosawagi! Episode 1 Discussion
hacker09 - Jul 20, 2021
1 replies by Memore »»
Aug 28, 2021 12:38 PM
Pre-Release Thoughts and Theories
Damnits - Jul 4, 2020
14 replies by chengren »»
Mar 4, 2021 2:44 PM
So Many different Cells at Work!
Thekingmcking - Jul 4, 2020
4 replies by Eira_99 »»
Jul 6, 2020 3:23 AM