The Regression of Great Sage Riddle Anime Announced! Spring 2026 Premiere, Cast & Highlights

The popular full-color webtoon "The Regression of Great Sage Riddle" has officially announced its TV anime adaptation! The official release also unveiled the anime's key visual and confirmed that the series will begin airing on April 1, 2026. This fantasy epic, which follows a protagonist traveling back a thousand years in time to save the world, will be produced using the innovative "Light Anime" technology and will feature the talented voice actors Junya Enoki and Azusa Tadokoro in the lead roles.

What makes this series, seen as a potential dark horse for the Spring 2026 anime season, worth watching? Here is a detailed breakdown.

What is "Light Anime"? Faithfully Recreating the Manga's Aesthetics

"The Regression of Great Sage Riddle" is the first project in an anime broadcasting plan launched through a collaboration between Shogakukan and Dai Nippon Printing Co., Ltd. (DNP). The series utilizes the "Light Anime (R)" production technology developed by DNP in 2022.

For many fans of manga-to-anime adaptations, "animation quality collapse" is often a major concern. However, the core feature of "Light Anime" technology is that it directly uses the original manga's digital manuscript for production:

• After removing speech bubbles, the manga manuscript is colored and its layers are separated.
• Dynamic effects are added to breathe life into the static images.
• Perfectly preserves the original work's detailed and vibrant art style.

Every frame viewers see on screen will faithfully present the high-quality artwork of the original. This new technology not only significantly reduces production time and costs but also pioneers a new visual experience for adapting full-color webtoons into animation.

Voice Cast Revealed: Junya Enoki and Azusa Tadokoro Bring the Heat

Alongside the release of the key visual, the official team has also announced the highly anticipated main voice cast.

• Riddle CV: Junya Enoki Junya Enoki, known for voicing Yuji Itadori in "Jujutsu Kaisen," will play the protagonist Riddle. Riddle carries a thousand years of memories and despair, yet also burns with the hope of restarting fate. Junya Enoki excels at portraying characters with both fiery passion and deep inner conflict. His performance is sure to vividly express Riddle's "millennium-spanning obsession."

• Norn CV: Azusa Tadokoro The heroine Norn will be played by the renowned voice actress Azusa Tadokoro. As a key figure in the story, Norn is not only a glimmer of light for Riddle in his despair but also the source of his motivation to fight. How Azusa Tadokoro's clear and compelling voice will portray this ill-fated heroine is highly anticipated.