Legend (Takano Masaharu)

A brief description of the manga Legend (Takano Masaharu):

Reiji Saeki, who lives in the northeastern part of the city, died in an accident during the summer holidays… But before he realized it, a mysterious ball of light appeared before his eyes in the spirit world.

As a magician from a parallel world, this ball of light was looking for someone who could inherit the magic he had created to avoid losing it. Reiji, who accepted this offer, now lives in the parallel world of Elgin with a new body and a powerful magical power.