Male 17 years old 173cm/57kg Weapon: Knife • In reality, he is 'Nanaya Shiki' (though he is unaware of this fact). • Black hair, black eyes, wears horn-rimmed glasses, and a black school uniform. • 2nd year, Class C at Souya High School. • Tohno Akiha's older brother. • Suffers from anemia since an accident 7 years ago (he lost his memories of that time and believes it was a traffic accident). • Calm and tsundere. He grew up to be considerate and kind, appearing normal, but he has lost almost all sense of joy in life. • Obtained the Mystic Eyes of Death Perception after the accident 7 years ago. Wearing horn-rimmed glasses allows him to control the Mystic Eyes, so he wears them normally. • His parents are deceased.

Female Self-proclaimed 17 years old (actually over 800 years old) 167cm/52kg • A vampire known as a 'True Ancestor.' Unlike other Dead Apostles, she treats humans amicably. • Appearance: A significant beauty characterized by short blonde hair, red eyes, and white skin. • Outfit: Wears a slim white turtleneck, a necklace, a short navy skirt, black stockings, and long brown boots. • Personality: Pure and bright. She is hot-tempered and snaps easily when angry or teased. She especially loves explaining things. • Becomes cold, cruel, and serious toward Dead Apostles, usually slaughtering them. • Her power was weakened after being cut into 17 pieces by Tohno Shiki, but she has now grown fond of him as they build a bond. • Combat style: Fights by slashing with her claws. • Mystic Eyes of Enchantment: When used, her eyes glow gold, allowing her to manipulate the opponent's mind. • Nature Protection: Weakens the perception of her presence; despite her striking appearance, people don't particularly notice her.

Female 16 years old 160cm/45kg • Tohno Shiki's younger sister, head of the Tohno family, attending Asagami Girls' Academy. • Acts business-like as the head of the family, tsundere, quite mischievous, and cares deeply for her brother Shiki. She calls Shiki 'Brother.' • A beauty with blue eyes and long black hair. Wears a purple-toned school uniform.

16 years old Female 156cm/46kg • Servant of the Tohno family, in charge of cooking. • Hisui's twin sister. Unlike Hisui, she is mischievous. • Appearance: Short red hair and amber eyes. Wears a black kimono and an apron.

Female 16 years old 156cm/43kg • Kohaku's twin sister. • Servant of the Tohno family, in charge of cleaning. • Short red hair, blue eyes. Wears a black kimono and an apron. • Always uses polite speech. Unlike Kohaku, she is very blunt. Deep down, she is fragile and kind.

165cm/52kg Female 18 years old (actually 25) Weapon: Black Keys • A 3rd-year student in Class B at Prefectural Souya High School. (In reality, her student status is just a cover; she is an Executor belonging to the Burial Agency, a specialist in exterminating vampires. She has a disciple and partner named Noel.) • Always uses polite speech. Normally a kind and calm older-sister type, playful and innocent. When performing her primary duty of exterminating vampires, she suppresses her emotions and hurls verbal abuse at her opponents. • A beauty with blue eyes and short blue hair. Normal: Wears a school uniform and glasses. Exterminating vampires: Removes her glasses and wears a nun's habit. • Loves curry very much. • While many other Executors lack morality, Ciel is good-hearted. • A victim of the past incident in France.

Female 27 years old 165cm/59kg • Temporary homeroom teacher for Shiki's class. • Has a good and friendly personality in front of students, but is an outcast in the teachers' lounge. • Often uses metaphors but isn't very good at them. • Long brown hair tied back, brown eyes. Normally wears blue-toned teacher's clothes, but wears a nun's habit when performing her primary duty of exterminating vampires. • Her teacher status is a cover; she is actually an Executor belonging to the Holy Church, Ciel's disciple and partner. • Primary weapon is a halberd. • Has a personality that is excessively weak to the strong and strong to the weak. • A victim of the past incident in France. • Cruel to the point of being a psychopath toward Dead Apostles. • Unlike Ciel, her skills are bottom-tier.

Male 188cm/79kg • Appearance: White hair, red eyes, wearing medieval European-style clothing. • Ranked 19th among the 27 Dead Apostle Ancestors. • One of the 27 Dead Apostle Ancestors who appeared during the incident in France. • Blunt and quiet. Does not engage in cruel massacres. • Uses a long spear as his primary weapon. His Principle Bloodline utilizes cold air reaching a radius of several kilometers, and he attacks by releasing atmospheric heat as blue flames.

Male 178cm/65kg • A Dead Apostle with the ability to reincarnate. • Long black hair, red eyes, wearing an unbuttoned white shirt. • Uses many philosophical and archaic words. • In the past, the 'Tohno Shiki' (the original 'Tohno Shiki' who became Michael's reincarnated host) attempted to kill 'Nanaya Shiki' (the current 'Tohno Shiki') due to inversion impulse. After taking 'Tohno Shiki' as a host, Roa's emotions were affected, and his goal is to eliminate Nanaya Shiki (the current 'Tohno Shiki'). • Hostile toward Tohno Shiki.

Female 175cm • Reddish-blonde pigtails, orange eyes. Wears an outer garment that is almost like underwear, a tight leather skirt, and a white lab coat. • A personality so cheerful and bubbly that not a shred of seriousness can be found. Uses a bizarre way of speaking mixed with all sorts of slang. • A college junior of Makihisa Tohno. A scientist by profession, she visits the Tohno mansion regularly to inspect the facilities. • An excellent surgeon, but unlicensed.