The fantasy action manga Daikenja Riddle no Jikan Gyakkou is slated for an anime adaptation, set to premiere in Spring 2026. The series will explore a desperate quest to avert global catastrophe through temporal manipulation. Based on the manga of the same name, the story follows Riddle, a young man who travels back in time after a thousand years of despair. Armed with his accumulated knowledge, he aims to prevent the destruction of his world and stop the enigmatic "Box of Malice" organization. Details regarding the animation studio and key staff have yet to be announced. The adaptation promises to deliver a high-stakes narrative centered on action and the compelling theme of time travel, targeting fans of dark fantasy and intricate plotlines.