Cells at Work! (Original Japanese Version)

One day, as a Red Blood Cell is delivering oxygen and carbon dioxide, she is assaulted by Pneumococci and rescued by a White Blood Cell.

Things have been peaceful for Red Blood Cell when suddenly an abrasion occurs before her eyes. The White Blood Cells (Neutrophils) arrive to battle the bacteria.

Naive T Cell is patrolling the body for influenza virus proliferation. But since he's never taken on the enemy before, he's completely terrified and useless.

Bacteria appear near the stomach. White Blood Cell (Neutrophil) is on the scene at once. There, he finds Eosinophil, another type of White Blood Cell, already in battle.

The body has been invaded by a mass of cedar pollen! Rushing to the scene so that he can eliminate the cedar pollen, White Blood Cell (Neutrophil) runs into Memory Cell.

Let me become a great red blood cell one day... This is the story of Red Blood Cell before she became Red Blood Cell, when she was a young Erythroblast.

The enemy disguising himself as a common cell has revealed his true identity. He is Cancer Cell.

Delivering carbon dioxide to the lungs, and bringing oxygen to cells throughout the body... That's Red Blood Cell's important task.

In the middle of a drill, Killer T Cell tosses a subordinate right into Helper T Cell's office. The two polar opposites start arguing.

Red Blood Cell is being chased by a germ! A masked Monocyte comes to the rescue. Apparently, they are also part of the White Blood Cell family and a type of Immune Cell.

The world (body) is engulfed in sweltering heat. Even after triggering sweat, the body can't be cooled down. Abnormal increased vascular flow, soaring fever…

Red Blood Cell has been assigned to train a rookie Red Blood Cell! She tries to "show her what a dependable senpai I am!" But loses her way, and gets yelled at by other cells.

We have detected life-threatening damage! Hearing of this emergency, White Blood Cell (Neutrophil) rushes to the blast area but finds no traces of the blood cells to protect!

Tired of repeating the same task (cell division) day after day, the Normal Cell laments while working his boring job, when a mysterious cell suddenly appears in front of him.