# Gate Keepers 21
*Also known as: ゲートキーパーズ21*

## Facts
- Format: OVA
- Status: concluded
- Year: 2002
- Season: SPRING

## Renewal Score
**Gate Keepers 21** has a **36% renewal probability** on Courcast (confidence: 88%) as of 2026-06-03.

## Synopsis
32 years have passed since the initial defeat of the Invaders. A.E.G.I.S is all but dismantled now and has become an underground organiziation consisting of only a few Gate Keepers left to save humanity. One of the members, Ayane Isuzu, is sick of society as a whole, though she continues to defeat the Invaders out of spite for her father. Suddenly, she learns of the revival of Machine General (Kikai Shogun) and Devil Count (Akuma Hakushaku), but a mysterious ghost girl now accompanies them. It i

## 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/gate-keepers-21-spring-2002
- API: https://courcast.com/api/public/titles/gate-keepers-21-spring-2002
- About Courcast: https://courcast.com/about

*Last updated: 2026-06-03*