# Hataraku Saibou BLACK
*Also known as: Cells at Work! CODE BLACK / はたらく細胞BLACK*

## Facts
- Format: TV
- Status: concluded
- Year: 2021
- Season: WINTER

## Renewal Score
**Hataraku Saibou BLACK** has a **52% renewal probability** on Courcast (confidence: 73%) as of 2026-06-03.

## Synopsis
A rookie Red Blood Cell has been bustling about, frantically making oxygen deliveries all around the body! But his workplace is on the brink of going Code Black!! Drinking, smoking, stress, sleep deprivation... Struggling to survive a life not unlike the brutal corporate world, what must these overworked cells be thinking at the end of the day? This is a tale about the inside of your body...
(Source: Funimation)
Notes:
- The episodes were streamed two days ahead of the Japanese broadcast on Funi

## About Courcast
Courcast forecasts anime renewal probability using daily signals from streaming platforms, fan communities, and industry sources. Each CourScore (0–100) reflects fandom momentum, streaming performance, source material runway, and franchise history.

- Full details: https://courcast.com/title/hataraku-saibou-black-winter-2021
- API: https://courcast.com/api/public/titles/hataraku-saibou-black-winter-2021
- About Courcast: https://courcast.com/about

*Last updated: 2026-06-03*