Quick Answer
The Regression of Great Sage Riddle is streaming on Ani-One Asia, Bahamut Anime Crazy. 12 episodes (~5h total watch time). Availability may vary by region.
Where to Watch The Regression of Great Sage Riddle
Looking for The Regression of Great Sage Riddle? It's available on 2 platforms right now. Scroll down for direct links and search options if it's not showing up in your country.
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About The Regression of Great Sage Riddle
A young man named Riddle had lost all of his friends—and the entire world—at the hands of a mysterious organization known as the "Box of Malice." Having lost all hope to live, he dwelled in a pit of despair until he has one final revelation. What if... he could return to a time before everything ended? And so, after a thousand years, a deformed Riddle finally manages to reverse time. "I'm going to stop them this time...!" Equipped with a thousand years of knowledge and experience in his young...
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Where can I watch The Regression of Great Sage Riddle legally?
Right now, The Regression of Great Sage Riddle is on Ani-One Asia, Bahamut Anime Crazy. 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 The Regression of Great Sage Riddle 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 The Regression of Great Sage Riddle 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 The Regression of Great Sage Riddle.
Can I watch The Regression of Great Sage Riddle 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.