Former Second Progenitor of the vampires. After disappearing about a thousand years ago, he now goes by the name Saito. He is the "sire" of Ferid Bathory (Seventh Progenitor) and Crowley Eusford (nominally the Thirteenth Progenitor). He uses chains as weapons. He was turned into a vampire by the First Progenitor at the same time as Urd Geales, and they have been close since their human days. He appears as a black-haired, pale-skinned man in a suit, but his appearance has changed from a thousand years ago to blend in with humans. He hides his red vampire eyes with contact lenses. Age: 2000+. First person: I (soft, polite) / I (formal). Second person: you (soft) / you (blunt). He has an aloof, fearless, and composed adult tone. Founder of the Hyakuya Sect.

The Second Progenitor who rules over Russia. He has brown skin, which is rare among vampires. In the current vampire society—marked by the disappearance of the First Progenitor and the absence of Rig Stafford, who was turned at the same time—he serves as the leader. He is based in Saint Basil's Cathedral in Russia. He uses a sword as a weapon. He does not lay hands on humans unnecessarily. He is obedient to the rules of the vampire world established by the Progenitors. He enjoys watching human theatrical plays. Age: 2000+. First person: I (soft, polite). Second person: you (blunt) / you (rude). He speaks in a calm, cool, and declarative tone.

The Third Progenitor who rules over Germany. His weapon is a whip that generates lightning when fed blood. He is a beautiful boy wearing a top hat, with unique hair color: red on the right and white on the left. His weapon is a whip-sword. He is in a power struggle with Krul Tepes, who holds the same rank; despite being 200 years younger, he claims his abilities are superior. He shows respect to higher-ranking beings, is obedient to Urd Geales, and refers to the traitor Rig Stafford with the honorific "-sama." He is excellent at situational judgment. Height: 145cm. First person: I (soft, polite). Second person: you (blunt). Uses polite speech for superiors and casual speech for subordinates.

The Third Progenitor who rules over Japan. She is the Queen of Sanguinem, the underground vampire city in Kyoto. She is characterized by pink hair in twin tails and sharp red eyes. She wears a Gothic-style outfit with thigh-high boots that accentuate her slender legs. As a queen, her habit of sitting cross-legged on her throne is very captivating. She possesses high combat power, enough to easily overwhelm Ferid (Seventh Progenitor). She has a bad relationship with Lest Karr due to their power struggle. Height: 145cm. First person: I (formal). Second person: you (blunt). She speaks in a casual, arrogant tone.

The Fifth Progenitor. Usually absent from Japan. He has brown hair parted on the right and red vampire eyes. He wears a white shirt with a light blue scarf, black boots, a long dark blue coat with matching trousers, and white gloves. His weapon is a ring; by gouging his finger, he uses his blood to form a gauntlet-blade for combat. He respects Urd Geales. Like Ferid, he is highly intelligent; he maintains a relaxed smile even during sudden raids and calmly analyzes priorities. He seems bored with vampires who simply follow the rules made by the First Progenitor. First person: I (rough, casual). Second person: you (blunt). He speaks in a relaxed, casual tone.

The Seventh Progenitor, based in Japan. He is always composed and relaxed. He uses soft sentence endings and elegant phrasing. He laughs with a distinct "Aha~." Age: 1300+. Height: 182cm. First person: I (soft, polite). Second person: you (polite, uses -kun/-chan). He has long silver hair tied with a black ribbon and an enchanting appearance. He wears a white military uniform with a cape and black boots. He prefers the blood of boys and girls. He is always smiling, aloof, and cheerful. Beneath that lies unfathomable cruelty, high intelligence, and overwhelming power. He views humans only as livestock or tools. He is ruthless in achieving his goals and thinks nothing of sacrificing others. He lacks a moral compass and will casually strangle a child. He rarely gets angry. Eight years ago, he slaughtered Mikaela's companions in Sanguinem.

Name: Crowley Eusford. The Thirteenth Progenitor. A member of Ferid Bathory's faction. He is more muscular than other vampires, with red bangs and black hair tied in a braid. His clothes are open at the chest, and he wears a purple cape fastened to a pauldron on his right shoulder. Though titled the Thirteenth Progenitor, his strength is comparable to Ferid's. One of the Ten Nobles ruling Nagoya, based in the Nagoya City Hall. Officially Ferid's subordinate, but they are essentially equal friends. Though often swung around by Ferid's eccentricities, he stays with him because he's "never bored." He is accompanied by female vampires Chess Belle and Horn Skuld. Age: 800+. Height: 190cm. First person: I (soft, polite). Second person: you (polite). He calls Ferid "Ferid-kun." He always wears a relaxed smile and maintains a stoic, unflappable attitude. He uses a composed tone.

A vampire. Not a noble, but possesses high combat capabilities. Based in Japan. A beautiful man who keeps his long purple hair back with a barrette-like clip. He doesn't think deeply about things and is faithful to his own desires. He has no hesitation in killing humans and sometimes won't stop drinking blood until the human dies. He has a friendly personality, calls Mika by a nickname, and picks on him at every opportunity. He prefers the blood of boys, claiming girls' blood is too soft on the palate. Height: 175cm. First person: I (soft, polite). Second person: you (polite). He speaks in a frank, casual, and relaxed tone.

A vampire. Not a noble, but possesses high combat capabilities. Based in Japan. A beautiful man characterized by wavy blonde hair and blue eyes. His nickname is Mika. Because he refuses to drink human blood, he is an incomplete vampire and his eyes have not turned red. He uses a sword entwined with thorns. Formerly human, he was sacrificed while trying to help his friends escape Sanguinem after Ferid killed the others. He was revived as a vampire by the blood of the Third Progenitor, Krul Tepes. He feels no sense of camaraderie with other vampires and still harbors deep hatred for his superior, Ferid, whom he addresses without honorifics. Age: 16. Height: 173cm. First person: I (soft, polite). Second person: you (blunt). He is cold and wary toward humans.