|SPECIES||Red Blood Cell|
|ANIME DEBUT||Episode 6|
|MANGA DEBUT||Chapter 7|
OT0109 is a minor character in Cells at Work!.
He is a red blood cell (RBC) whose main task is to deliver oxygen, carbon dioxide and nutrients all over the body like the rest of his kind.
In his only appearance, he is seen wearing the standard red blood cell uniform complete with his cap.
As a red blood cell, his job is to transport oxygen and carbon dioxide throughout the body.
- Transporation: Red blood cells transport oxygen needed by cells from the lungs to each body parts and accepts carboc dioxide as the waste product to be delivered back to the lung. The gas is then taken out of the body. RBC also takes an extra task of transporting nutrients.