* Based on a spinoff manga written by Harada Shigemitsu and drawn by Hatsuyoshiya Issei.

A newbie Red Blood Cell is one of 37 trillion working to keep this body running. But something's wrong! Stress hormones keep yelling at him to go faster. The blood vessels are crusted over with cholesterol. Ulcers, fatty liver, trouble (ahem) downstairs... It's hard for a cell to keep working when every day is a CODE BLACK!

What if the body wasn't so young, and was never very healthy? A fresh-faced Red Blood Cell and his friend, the buxom White Blood Cell struggle to keep themselves and their world together through alcoholism, smoking, erectile dysfunction, athlete's foot, gout... it's literal body horror! Whoever this guy is, he's lucky his cells can't go on strike!

Source: Kodansha Comics

Note: The episodes were streamed ahead of the Japanese broadcast on FUNimation USA and affiliated streaming services (Wakanim, AnimeLab). The regular TV broadcast started on January 10.

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Same setting: Hataraku Saibou