In a world where dungeons connected to another world have appeared, people who awaken to mysterious powers and defeat monsters for a living are called adventurers.Yuto Kirishima draws the jackpot job of Sage, but for some reason, his magic power is zero! He is looked down upon as the weakest Sage who can't attack. Ultimately, he is abandoned by his companions and used as a sacrifice. Just then, a mysterious choice appears before him.