

Cells at Work!! The Return of the Strongest Enemy. A Huge Uproar in the Body’s Bowels!
Hataraku Saibou!! Saikyou no Teki, Futatabi. Karada no Naka wa "Chou" Oosawagi!
Ippan Saibou is tired of watching immune cells like white blood cells get all the glory for protecting the body. He wants to prove himself useful and earn some recognition too. One day he spots some harmless-looking bacteria being swept away by the bloodstream. Against his better judgment, he rescues them and brings them somewhere safe. But his good deed doesn't go unnoticed—Hakkekkyuu U-1146 detects the bacteria and starts hunting them down. Elsewhere in the body, NK Saibou is on a different mission. She's tracking down an antigen the immune system has fought before, and she suspects it's come back looking for payback.
Content compiled by AnimeList.moe from publicly available sources.


Cells at Work!! The Return of the Strongest Enemy. A Huge Uproar in the Body’s Bowels!
Hataraku Saibou!! Saikyou no Teki, Futatabi. Karada no Naka wa "Chou" Oosawagi!
1
2020
Synopsis
Ippan Saibou is tired of watching immune cells like white blood cells get all the glory for protecting the body. He wants to prove himself useful and earn some recognition too. One day he spots some harmless-looking bacteria being swept away by the bloodstream. Against his better judgment, he rescues them and brings them somewhere safe. But his good deed doesn't go unnoticed—Hakkekkyuu U-1146 detects the bacteria and starts hunting them down. Elsewhere in the body, NK Saibou is on a different mission. She's tracking down an antigen the immune system has fought before, and she suspects it's come back looking for payback.
Content compiled by AnimeList.moe from publicly available sources.
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Cells at Work!! The Return of the Strongest Enemy. A Huge Uproar in the Body’s Bowels!
Hataraku Saibou!! Saikyou no Teki, Futatabi. Karada no Naka wa "Chou" Oosawagi!
Ippan Saibou is tired of watching immune cells like white blood cells get all the glory for protecting the body. He wants to prove himself useful and earn some recognition too. One day he spots some harmless-looking bacteria being swept away by the bloodstream. Against his better judgment, he rescues them and brings them somewhere safe. But his good deed doesn't go unnoticed—Hakkekkyuu U-1146 detects the bacteria and starts hunting them down. Elsewhere in the body, NK Saibou is on a different mission. She's tracking down an antigen the immune system has fought before, and she suspects it's come back looking for payback.
Content compiled by AnimeList.moe from publicly available sources.
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Alternative Titles
Cells at Work!! The Return of the Strongest Enemy. A Huge Uproar in the Body’s Bowels!
Hataraku Saibou!! Saikyou no Teki, Futatabi. Karada no Naka wa "Chou" Oosawagi!
『はたらく細胞!!』最強の敵、再び。体の中は“腸”大騒ぎ!
Cells at Work!!