Episode 6 (CaW CB)

"Kidneys, Kidney Stones, and Tears" (腎臓、尿路結石、涙) is the 6th episode of the Cells at Work! CODE BLACK! anime adaption.

Plot
Despite everything that's going on within the body, AA2153, and AC1677 still find the time to share a few laughs. Their tussling gets them all dirty, and the rookies decide to go to the kidneys for a bath. However, the red blood cells can't seem to escape the harsh reality of the body's weakened state. They find that the Glomeruli are also overworked and stressed as

However, their leader, Gran, refuses to let them rest or complain. According to her, the kidneys are silent organs and should do their jobs without talking.

But things get worse for the body. While on delivery, AA2153 and AC1677 find themselves in the way of a one-centimeter kidney stone. It tears the ureter, and countless red blood cells perish in the urine.

Luckily, the body gets a tube inserted through the urethra that breaks the stone. The incident makes AA2153 realize that the red and white blood cells are not the only organisms getting overworked.

While the tube has solved the kidney stone problem, it also comes with a significant drawback because now bacteria, Acute Pyelonephritis, invade the body. Unless treated, the bacteria can get into the bloodstream or, even worse, cause sepsis.

While the white blood cells hold the bacteria off, AA2153 returns to the kidneys and urges the Glomeruli to evacuate. However, Gran refuses them to leave. The rookie red blood cell begs her to let them escape. But Gran doesn't budge. Suddenly, a giant bacterium appears and is about to kill a Glomeruli. Before the creature can deliver a killer blow, Gran shields the young Glomeruli and thus sacrifices herself before U-1196 can kill it.

Before she dies, Gran apologizes for pushing the Glomeruli so hard, but their work is vital to the body. The white blood cells are losing the fight, but luckily the body takes antibiotics and together beat the bacteria.

The Glomeruli mourn Gran's heroic sacrifice. AA2153 and AA1677, who are now dirty from the battle, choose to skip a bath and continue their deliveries.

New characters

 * Glomeruli
 * Gran

Returning characters

 * AA2153
 * U-1196
 * AC1677
 * U-1212
 * U-8787
 * Platelet Division
 * Macrophage