Legend (Yuunagi)

Living in the Tohoku countryside, Reiji Saeki lost his life in an accident during summer vacation. However, he found himself in a white world with a strange glowing orb in front of his eyes. The orb claimed to be a magician of a different world, and he was looking for a person who would inherit the magic he had perfected in order to prevent the knowledge from disappearing. With that, Reiji, equipped with a new body and powerful magic, went to live in the world of Elgin.

(Source: Silent TL)