Koko wa Ore ni Makasete Saki ni Ike to Ittekara 10-nen ga Tattara Densetsu ni Natteita.

Luck, an S-rank mage in the hero’s party, makes a last stand against the Demon King to save his companions. When he finally returns victorious, ten years have passed, and the world praises him as a legendary hero who died in battle. Unable to reclaim...