Shigemitsu Harada

A novice red blood cell and a relentless white blood cell work together to protect their human from invading germs, pathogens and other threats.

Dr. Akiba, a rather perverted scientist, developed a series of sex robots, and Type 100 is his newest creation. She has highly advanced artificial intelligence — so advanced that she refuses to become Dr. Akiba's sex slave as he had designed and escapes from his lab. She meets college student Shunsuke Kubo and decides to stay at his apartment. However, as she is designed to be a sex robot, she interprets everything Shunsuke says in a sexual manner.

Alcohol, smoking, and stress—in the body subjected to these irritants, the cells responsible for maintaining life seem to fight a war that never ends. Due to a severe shortage of workers, Red Blood Cell AA2153 has to quickly learn to deliver oxygen and collect carbon dioxide, even in dangerous conditions. Meanwhile, White Blood Cell U-1196 has to do her part by dealing with germs and viruses during life-threatening situations. In the midst of these crises, they have to work together to keep the body healthy, despite not knowing if their sacrifices will be worthwhile. Cells at Work! Code Black takes a different approach by showing the grittier side of the jobs our cells perform.

Kunyan lives her crazy life of misadventures from episode to episode. This comedy series is accompanied by a narrator who scientifically explains all that happens to her.