The Regression of Great Sage RiddleDaikenja Riddle no Jikan Gyakkou; 大賢者リドルの時間逆行; The Regression of Great Sage Riddle; Đại Hiền Giả Riddle Hồi Quy Báo Thù

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 body, the Great Sage Riddle’s journey to the past now unfolds!