Keisei Tagami

As the devoted Contracted Priest to Makina Hoshimura, this protector is driven by a singular mission: helping Makina avenge her murdered family against the elite undead known as the Shichisei. Though he shares no blood relation with Ouri Kagami, he acted as his adoptive brother after a traumatic past event. He constantly strives to shield Ouri from the grim realities of Shikabane Himes, yet supernatural disturbances relentlessly find their way into the boy's life.