CELLS AT WORK!
Cells at Work! CODE BLACK Vol. 5 Manga
(W) Shigemitsu Harada (A/CA) Issei Hatsuyoshiya
In this new spinoff of the hit manga, a newbie Red Blood Cell is one of 37 trillion working to keep this body running. But something's wrong! Ulcers, fatty liver, trouble (ahem) downstairs... What's wrong with this body?! For ages 18 and up.