Saiki Rei

Personality
Rio described him as a good guy, jovial and easygoing.

Background
Japanese high school student, a year older than Rui, Kouta and Akane and their senpai in their school club, currently 17 and near of being 18.

History
When he noticed Kouta's plan of running away with Christina due to his feelings of inferiority towards Rui he decided to follow him for being sure that he wouldn't go down a strange path.

In the welcome party for Christina, Dirk Dandy, a noble with the rank of baron approached him and introduced his daughter Rosa Dandy to him, later Rosa would become Rei's girlfriend and Rei would decide to seriously study magic in Rodania for becoming a court mage and getting married with her.

Abilities
While Rei lacks any training to use magic, he has incredible potential for power as any human from Earth does. With the right education, he can progress to a high station in Restoration or Beltram too.