I inherited the previous generation's overpowered memory.

A world of swords and magic. A boy named Atla was born into this world as an orphan. One day, while continuing his life in an orphanage, he inherits the memories and knowledge of Yuto, a sorcerer who came to this world from Japan on Earth and lived out his life there. Though he did not wish for it, having inherited these memories and knowledge, he cannot return to his former state. He decides to somehow make use of the inherited knowledge and continue living. As a result, this is the tumultuous story of the boy Atla, who continues to grow at an extraordinary rate. Note: This story basically follows an "I'm OP" (overpowered) format. Please be advised if you dislike protagonist-centered narratives.