Touya, a 35-year-old man, is summoned from his MMORPG game to another world as a Priest, a support class that manages unnecessary items. Disappointed, the princesses summon a hero, leaving Touya to be sent back, but he ends up in an unknown place. Discovering his in-game storage is functional, he uses its items to survive. Aiming to become a Berserker, the strongest warrior class, he unexpectedly becomes a Sage, the strongest magic class. Now, a Berserker-aspiring Sage runs through another world using cheat items!