Hataraku Saibou, AKA Cells At Work, delivers exactly what the title promises, only the cells in question are anthropomorphized. We’re introduced to a red blood cell AE3803, who is very new to her job of delivering oxygen and other nutrients to various parts of the body (and gets lost easily).
When a band of pneumococci (germs) invade, the red blood cells rely on neutrophils (white blood cells) like U-1146, who is initially all business (the germs have blood like people too) but softens a bit as he spends more time with AE.
AE and the remaining germ end up bumping into each other by accident, and U has to save her on more than one occasion as they traverse various parts of the anatomy, represented as parts of a huge bustling city. Cells at Work feels like a cross between Working!! and either Futurama’s “Parasites Lost” or the Magic School Bus book in which they go into the human body.
So yeah, it’s a bit of a silly premise, but well-executed, well-paced and full of fun little comedic beats that keep things from getting too clinical. Kanazawa Hana provides a manic energy and ebullience to AE. While this episode was primarily how a sneeze can occur (treated as a monumental rocket launch) I imagine future eps will cover other bodily functions, doubtless involving other cell-people.