All over the world, Monsters suddenly began appearing. The only person who could save humanity from “The Calamity” was “The Great Sage”, Ichikami Minato.But, despite being satisfied with his death, he was reincarnated into the body of a boy who was bu

“The barrier mages job is done, right? Then, why not join the Kingdoms Royal Mage Corps?”For the last 30 years, a protective barrier shielded the kingdom from the Demon Kings forces. Initially maintained by a hundred barrier mages, their numbers dwindle