Ichirou Rosario di Maria

A high school student lives in Yokohama. He doesn't look like it, but he is actually a priest! Since the vampires come after him day in and day out, he is usually in nausea. He takes up Bloody's proposal and pledges to kill him so that he can use Bloody's power to protect himself, but...

- His grandfather is Isaac Rosário di MarÍa, a legendary exorcist from 400 years before the plot.
- His father, Yuusei Rosário di María, died in front of Ichiro, when Ichiru was still a child.
- His mother, named Shion, died shortly after giving birth to him.