Bacteria at Work

Bacteria at Work (吉田はるゆき) is a spinoff written and illustrated by Haruyuki Yoshida, and supervised by the author of the original, Akane Shimizu.

Plot
The series is set in a world of anthropomorphic bacteria (instead of cells) living in a body. It focuses on the bacteria colonies living inside the intestines of a highschool girl.

The portrayal of bacteria in this manga is different from the original, taking the form of humans living in an overall peaceful community instead of invading alien bodies.