Matou Zouken

Zouken is a shrewd, powerful, but ancient sorcerer who is patriarch of the Matou family and is known to be the grandfather of Shinji and Sakura.

He has amassed a large and extensive library of sorcerous knowledge, yet his lessons are strict and harsh. Zouken considers Shinji to be a disgrace of a sorcerer, and believes Sakura may have more potential than her brother.