Riz Mathers♀

Long distance relative of Yuuto from head family in Britain. Completely opposite of Yuuto the third-rate wizard, she is extremely talented and skilled wizard with high pride. Despite being completely perfect when it comes to magic, she lacks of common sense about the world around her and uses misleading words a lot which is always the main source of trouble for Yuuto. Even though Yuuto warned her a lot about taking care not to reveal magic to people, she still uses it unconsciously from time to time. She comes to Japan to be Yuuto's master.