📝 魅力・見どころ・特徴 ネタバレ控えめ
01① "Time reversal" achieved after a thousand years of training
Having lost everything, young Riddle spends a thousand years becoming a great sage and travels back before the world's collapse.
02② A young great sage with a thousand years of knowledge
Even returned to a young body, he retains a millennium's worth of experience and power as he tries to save the world.
03③ A 5-minute-per-episode "light anime" format
As the first project from a Dai Nippon Printing × Shogakukan collaboration, its short runtime packs in dense, fast-paced developments.
04④ The enemy: the world-destroying "Box of Malice"
The goals of the mysterious "Box of Malice," who took Riddle's companions and world from him, form the core of the story.
05⑤ Junya Enoki stars, with Akio Otsuka as the pre-reversal Riddle
Junya Enoki voices the young, time-reversed Riddle, while Akio Otsuka plays the version who lived through a thousand years.
06⑥ Heroine Norn is a fellow apprentice adventurer
Voiced by Azusa Tadokoro, Norn is an apprentice adventurer who belongs to the same party as Riddle.
07⑦ Opening theme: Akka's "Savage"
Written by Tsumugi Jyachi with composition and arrangement by Yumemi Kujira and Keiichi Osawa, the OP theme gives the story a breathless momentum.
08⑧ Earliest streaming on dAnime Store, Anime Times, and DMM TV
Three services stream it simultaneously with the broadcast at 21:55, ahead of other platforms.
💡 注目ポイント・展開予想 軽めネタバレ
The series aired on TVK and other stations from April 1 to June 2026, and Season 1 has concluded as of July 2026. With five volumes of the source manga already published, check the official site and social accounts for news of a potential continuation.
🧾 これまでのあらすじ ネタバレあり
The story follows Riddle, who lost everything to the world-destroying "Box of Malice," spending a thousand years becoming a great sage and achieving time reversal. Now carrying a millennium of knowledge in a young body, Riddle fights alongside companions like Norn and Dalsan to stop the world's destruction once and for all.
✅ 観る・注目するおすすめポイント
Recommended for fans of time-loop and do-over stories, and for anyone looking for a short fantasy series they can watch in a spare five minutes.
👀 トリビア・驚きの小ネタ集
・It's the first work from a joint anime broadcast project between Dai Nippon Printing and Shogakukan
・It shares the "AnimationID" label and production framework with the concurrently airing You Still Don't Know Gunma ~Reiwa Edition~
💫 未回収の伏線 ネタバレあり
・The true goal of the "Box of Malice" has yet to be revealed, and how it's explored going forward is a key focus
・How the relationship between Akio Otsuka's thousand-year-old Riddle and Junya Enoki's young Riddle develops is also worth watching
💌 次シーズンで絶対バズる名セリフ予想
・Viewers have commented, "I'm glad we get another precious 5-minute anime this season"