Academy’s Reincarnated Hero is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here.
The first-generation hunter and the hero who established all monster subjugation systems and frameworks, Kim Jun-woo, finally defeats Gigantiana in the subjugation of the Black Grave Dungeon. However, he also loses his life in the process. As his breath fades, he hears the voice of Gigantiana…