He Is Reborn In Another World To Become An Overpowered Wizard

A young salaryman who died in an accident was reborn in another world filled with magic and demons. As a baby, he was picked up by the patriot hero "Sage" Merlin Wolford and was given the name Shin. He was raised as a grandson and soaked up Merlin's teachings, earning him some irresistible powers.

Anime Name: Wise Man's Grandchild