The Great Sage Who Returned From Another World Wants to Live Quietly

Briefly about The great sage who returned from another world wants to live quietly manga:

At the age of fifteen, Saito is transported to another world. He is picked up by the Great and Wise Kate, who takes him into her care.

The great sage who returned from another world wants to live quietly manga.

After seemingly forever learning, he becomes a great sage and, together with his friends, defeats the Demon King. When he returns to his home world, Japan, he finds that nineteen years have passed!