Rudeus Greyrat
ルーデウス・グレイラット
A reincarnated NEET loser who died, the twist is that his memories of his past life remained. His current body possesses high affinity for magic, even as a child.His future self tells him that Hitogami is betraying him and also gives him the diary of his future life, to make sure that the contents don't happen again.After he defeats the North God Karlman III, he becomes one of the Seven Great World Powers, represented by the insignia engraved in the pendant Roxy gave him.He dies of old age at 74.(Source: Baka-Tsuki)
Manga