A spin-off of Cells at Work! by Shigemitsu Harada, Issei Hatsuyoshiya, and Akane Shimizu, this spin-off shows the opposite of what Cells at Work! is all about. What if we focus on the cells working on an older and unhealthy body? We follow a fresh-faced Red Blood Cell and his friend, the buxom White Blood Cell, as they struggle to keep themselves and their world together through alcoholism, smoking, erectile dysfunction, athlete's foot, gout... it's literal body horror! Whoever this guy is, he's lucky his cells can't go on strike!
[Source: Anime News Network, Kodansha (series summary)]