Byakuya Matou

As the elder brother of Kariya and father to Shinji, this figure plays a pivotal role in the Matou family hierarchy. Alongside the sinister Zoken, he manages the rigorous and often cruel magical education of Sakura, who is being groomed as the clan's future successor. His involvement in overseeing her development is central to the family's desperate pursuit of reclaiming their lost magical prestige.