Oscar Dragonia
オスカー・ドラゴニア
Oscar is an anti-Daemon, praetor-rank Exorcist of the Abbey and encounters Velvet Crowe on several occasions. He is the younger, half-sibling brother of Teresa Linares and serves under Artorius Collbrande, first encountering Velvet as she tries to flee from Titania, the prison island.(Source: Aselia Wikia)
Manga