Synopsis: Cells at Work! CODE BLACK

The body undergoes a constant battle when exposed to alcohol, smoking, and stress, with the cells responsible for maintaining life being caught in the crossfire. Sekkekkyuu AA2153 is faced with the daunting task of delivering oxygen and collecting carbon dioxide in hazardous situations due to a shortage of workers. Meanwhile, Hakkekkyuu U-1196 must combat dangerous germs and viruses during life-threatening emergencies. In the midst of this turmoil, they must work together to ensure the body remains healthy, with their sacrifices going unrecognized. Hataraku Saibou Black showcases the harsh reality of the cellular jobs we rely on.