Quick Answer
Agate is streaming on Rakuten Viki. 15 episodes (~6h total watch time). Availability may vary by region.
Where to Watch Agate
Agate is currently on Rakuten Viki. Keep in mind that catalogs change by region — if you don't see it on your usual service, check the other platforms listed here.
Confirmed Streaming Platforms
Subscription availability by JustWatch
More Ways to Watch Agate (US)
Watch Free
Availability data by JustWatch
Check Other Platforms
Anime licensing changes by region. If Agateisn't on your usual service, try these.
About Agate
Agate is a demon girl cursed with an eternal life. To forget the past, she throws half of her head into a deep valley and runs away. Unexpectedly, the tears flood the valley floor and form into a lake, triggering a flood in hell. Aloys, the Prince of Ghost comes to the Human World to find out the truth and finally finds the demon girl, starting a story of life and love. (Source: Bilibili YouTube)
Full details on MyAnimePulseFrequently Asked Questions
Where can I watch Agate legally?
Right now, Agate is on Rakuten Viki. That said, anime licensing varies a lot by country — what's on Netflix in Japan might not be on Netflix in the US. If your go-to platform doesn't have it, try the other services listed above.
Is Agate on Netflix or Crunchyroll?
Can't confirm either right now. Both platforms rotate their catalogs pretty often, so it's worth searching directly on each one.
Is Agate available with an English dub?
Dub availability depends on the platform. Crunchyroll has been expanding their dubbed library a lot recently, and Funimation (now merged into Crunchyroll) historically had the biggest dub catalog. Check each platform's listing for Agate.
Can I watch Agate for free?
Crunchyroll offers a free ad-supported tier for some shows. Most other platforms require a subscription, but many offer free trials for new users. Tubi and Pluto TV occasionally have anime in their free rotation too.