One of the children living at the Hyakuya Orphanage in Shibuya with Mika, Akane, and Junji back in 2012 prior to the Apocalypse.
A member of the Hiragi family who adopted Junji from the Hyakuya Orphanage for experiments while using the alias of Miyuki Yamada. She murders someone and knocks Junji unconscious as soon as she leaves the orphanage. They are then promptly kidnapped by vampires.
Mika's second-in-command. Junji considers her to be his sister. She inspects Mahiru before letting Junji leave with her.
The charismatic leader of the Hyakuya orphans. Junji considers him to be his brother. He calms Junji down when he cries and takes care of him. He gives Mahiru instructions about how to raise him right.
He appears at the orphanage where Akane and Mika grow up.