Also known as: はたらく細胞BLACK
Spinoff of Hataraku Saibou, illustrated by Hatsuyoshiya Issei. Also Known as Cells at Work! Code Black in English.
The same in premise to the original series, but focuses more on unhealthy bodies instead.
Notable Characters
- AA-2153: Protagonist Red Blood Cell (Hataraku Saibou)
- AC-1677: Friend of protagonist
- U-1196: Protagonist White Blood Cell (Hataraku Saibou)