Dizi Adı: Hataraku Saibou Black
Bölüm Adı: Overwork, Hair Loss, and Delirium
Sezon/Bölüm: 1. Sezon 5. Bölüm
Yayın Tarihi: 24 Oca. 2021

Red Blood Cell (AA2153) has gained confidence in his work after overcoming numerous obstacles. Along with White Blood Cell, he vows to create a better world and is overcome with a sense of purpose in his work, but shortly after, inflammation is found in the hair follicles. Red Blood Cell discovers that the Killer T Cells, who are normally reliable colleagues, are attacking Hair Matrix Cells and destroying the follicles.