The official website for Kodansha’s Morning magazine has announced that the Cells at Work! (Hataraku Saibō) spin-off manga Hataraku Saibō BLACK will launch in the magazine and in the Weekly D Morning digital manga magazine on June 7, 2018. Shigemitsu Harada is providing the story, Issei Hatsuyoshi is drawing the manga, and original manga creator Akane Shimizu is supervising the work.
Shimizu launched the Cells at Work! manga in the March 2015 issue of Kodansha’s Monthly Shonen Sirius, and Kodansha shipped the fifth compiled volume in Japan in August 2017.