Astolfo Granatum is the firstborn son of House Granatum, a lineage of Chasseurs serving the Catholic Church since the war between humans and vampires. A timid and empathetic child, he avoided conflict—a trait his mother called kindness—which led him to befriend an injured vampire boy in secret, along with the vampire’s younger sister. These meetings nurtured a dream of peace between their kinds. That hope shattered when the vampire and his companions raided the Granatum home. The family was tortured for days. Astolfo was forcibly Marked over twenty times and made to witness his parents' murder: his mother violated, his father’s head split open. His younger sister died while he held her hand, her warmth fading as he watched. Chasseurs led by Roland Fortis intervened to save him. The trauma left Astolfo unstable and suicidal. His hatred for vampires was cultivated by First Paladin Charles, who encouraged him to become a Paladin and used his tragedy to win public favor. Trained by Roland, whom he initially worshipped as a perfect savior, Astolfo’s hatred festered. It culminated during a raid on a vampire-run trafficking ring; after rescuing survivors who sympathized with their captors, he slaughtered them as heretics. When Roland condemned the violence, Astolfo broke down, confessing his hatred stemmed from self-loathing and a desire for punishment. Believing him beyond salvation, Roland resigned as his trainer to redirect Astolfo’s hatred toward himself. Astolfo was later promoted to Paladin at age fifteen, the youngest in history, his violent hatred for vampires and betrayed contempt for Roland stronger than ever. He possesses a slender build, fair skin, and androgynous features, with large pink eyes and long, straight dark pink hair cut just below his chin. He wears the standard Chasseur uniform: black pants, a cassock, a white harness, and lace-up boots, along with a red garnet rosary and earrings shaped like vampire fangs. His personality is defined by a genocidal hatred toward vampires. He claims a Chasseur’s duty is not to protect humans but to exterminate vampires, shows little regard for human life, and takes pleasure in inflicting suffering. He has a volatile temper, especially when mistaken for a woman, touched without consent, or compared to Roland Fortis. Violent, obsessive, egocentric, and sadistic, he views himself as a deserved instrument of justice. Faint traces of his former gentleness surface in his affectionate behavior toward small children. It remains unclear how much of his fervor is his own and how much was implanted by the Church. In combat, he wields Louisette, the "Pillar of Justice," a mechanized spear powered by Astermite that extends unpredictably and creates explosions after charging. He uses injectable steroids—called "tonic"—to enhance his performance, risking severe health damage from overdose, and employs Aegis flashbangs designed to blind vampires. His fighting style emphasizes agility, speed, and dexterity over strength, using clever tactics to provoke opponents into revealing openings. He shares a significant relationship with his former trainer, Roland Fortis. Once worshipping him as a god after being saved by him, Astolfo’s admiration curdled into hatred after Roland’s perceived betrayal, though he still unconsciously seeks comfort from him. He is attended by Marco, a subordinate who addresses him as "young master" and shows concern for his well-being. Astolfo honors the memory of his murdered family, becoming enraged at any insult toward them and often reflecting on their deaths. During events in Gévaudan, Astolfo led a Chasseur unit hunting vampires. He displayed extreme brutality, executing human Dragoons for mistaking him for a woman and immediately attacking the vampire Noé Archiviste. He repeatedly injected combat steroids, suffering severe physical strain including bleeding from the eyes and nose. His trauma was triggered by Naenia, who noted the Marks of Possession on his body, causing him to relive his family’s murder and descend into a rage. After overdosing on steroids and being defeated, he suffered a mental breakdown, stumbling toward Roland, weeping, and confessing the deaths were his fault before collapsing. In the non-canonical drama CD spin-off "Koi wa☆LOVE Mission! Spin-off! ~Shiratori Astolfo no Yūutsu~," set in a Japanese high school, Astolfo Shiratori is chairman of the Disciplinary Committee. He wears a pure white uniform and presents as a perfect, popular honors student. His dynamics are reinterpreted: he becomes flustered and jealous over Roland Tanaka spending time with Olivier.