Sano Yuji, a black company employee, is summoned to some other world while finishing his home based. His profession in the other world, a Monster Tamer, is known as a job that means it is difficult to be an adventurer. However, because of some slimes he met, which read several magical books, he gained magical powers and the next profession, Sage. Yuji acquired overwhelming power, but is he aware of his strength? Blindly becoming unparalleled and strongest on earth! _________________________________