With bodily functions ground to a halt and the cells on the verge of losing hope, only Red Blood Cell AA2153 refuses to give up; after experiencing various diseases and losing his friends, AA2153 and the other cells reach a realisation.
Junya Enoki
Sekkekkyu (AA2153)
Kenn
Sekkekkyu (AC1677)
Yōko Hikasa
Hakkekkyu (1196)
Lynn
Hakkekkyu (8787)
Yumi Uchiyama
Hakkekkyu (1212)