A boy named Toori, who can only use everyday magic, worked odd jobs at the Adventurers' Guild to support his sick older brother. The only monsters he could defeat were Slimes, and the magic stones he obtained were meager. His days were spent earning just enough to get by while enduring unreasonable treatment from the guild members. Then, one day, in a cave, he encountered a "talking book." "Don't you want to get your hands on a real magic stone?" Those words would dramatically change Toori's destiny. —The tale of the "Unrivaled Magic Stone" Everyday Mage begins here!