Born as the eldest son of a prestigious Duke's family, the protagonist was once hailed as a miracle child, only to be branded a "mana-less failure" as he grew older. After losing everything and dying a miserable death, he is miraculously regressed to his childhood with all his future knowledge intact. This time, he discovers that his lack of mana wasn't a defect, but a unique vessel for a legendary power. With the wisdom of a regressor and the talent of a true prodigy, he begins his journey to reclaim his honor, protect his dukedom, and rewrite his tragic history.

Alternative Names: The Duke's Eldest Son is a Prodigy, Dukedom’s Legendary Prodigy, Gongjakga-ui Cheonjae Mangnani, 공작가의 천재 망나니.

Genre: Action, Adventure, Fantasy, Shonen.

Author: Various (Webtoon Adaptation).

Status: Ongoing.