Where to Watch The Regression of Great Sage Riddle in the US

The Regression of Great Sage Riddle has the kind of reputation that outlasts any streaming deal — a 9/10 audience rating from 2 viewers doesn't fade. Availability varies by region and changes regularly, so check the TV Butler options below to find the fastest way to watch in your country.

Part of the current wave of streaming-era originals, The Regression of Great Sage Riddle follows a path that stands out in a crowded field. Reclaim everything you lost—in your second run through the world. The mysterious group “Box of Malice” has taken everything from the young man Ryddel—his companions, his world, his future. Standing at the edge of despair, he grasps one final idea: What if I could return to the time before everything was destroyed? Junya Enoki and Azusa Tadokoro lead a cast that brings real weight to the material. It aired in 2026.

Animation fans will appreciate the craft, but The Regression of Great Sage Riddle works equally well for viewers who don't typically seek out animated series — fans of KJ File will feel at home. The medium is secondary to the quality.