The Aniplex booth had announced at Anime Japan 2019 event that Akane Shimizu’s Cells at Work! (Hataraku Saibou) manga will be receiving a second season. Shimizu launched Cells at Work in Shounen Sirius magazine in January 2015. The fifth volume was published by Kodansha in August 2017. Cells at Work! currently has 2.5million copies of its compiled volume in print.
The 13-episode anime series was launched by David Productions on July 7th, 2018 to September 30th, 2018. Followed by a special episode on December 18th, 2018. The series also inspired a darker spin-off manga Cells at Work! Black (Hataraku Saibou Black) which was launched by Shigemitsu Harada and illustrated by Issei Hatsuyoshiya in Morning magazine in June 2018. The third volume went on sale on February 22nd, 2019.
Cells at Work! synopsis:
The average human body contains about 60 trillion cells, and each of them has work to do! But when you get injured, viruses or bacteria invade, or when an allergic reaction flares up, everyone from the silent but deadly white blood cells to the brainy neurons has to work together to get through the crisis!
Source: Cells at Work Official Twitter