Home / Series / はたらく細胞BLACK / Aired Order / Season 1 / Episode 12
Home / Series / はたらく細胞BLACK / Absolute Order / Season 1 / Episode 12

Return, the Heart, and Demise

Still unable to find meaning in his work, Red Blood Cell (AA2153) is determined to continue delivering oxygen and works hard at his job. Contrary to his determination, the body's internal environment continues to decline. Plaque, which is made up of cholesterol and fat deposits, has accumulated on the inner walls of the blood vessels, causing them to deteriorate. The buildup of plaque has even affected the coronary arteries which wrap around the heart and supply oxygen and nutrients to the entire heart muscle...

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  • Originally Aired March 14, 2021
  • Runtime 24 minutes
  • Content Rating United States of America TV-14
  • Network Tokyo MX
  • Studio Liden Films
  • Production Company Aniplex
  • On Other Sites IMDB
  • Created September 23, 2021 by
    Jessjca
  • Modified July 28, 2024 by
    NoWahala
Name Type Role
Hayashi Mori Writer Series Composition / Screenplay
Hideyo Yamamoto Director Series Director
Toshiyuki Sone Director Episode Director