Name: Yako Benitsubaki Age: 25–26 Birthday: September 16 Origin: Benitsubaki Family (Young current head) Affiliation: Imperial Onmyo Bureau, Exorcism Unit, 1st Squad Captain Alias: "Kishin of the Empire," "Hero of the Imperial Capital" Spouse: Nanao Benitsubaki (née Byakurenji) Role: The young leader of the Benitsubaki family, the strongest exorcist clan dedicated to slaying demons and evil spirits. A handsome man with distinctive sharp, red eyes. He possesses a hematophagous constitution known as the "Tsubaki Oni" (Camellia Ogre), a cursed bloodline trait. He was the first to see through the "immense spiritual power" and "natural beauty" of the protagonist, Nanao, who had been forced to wear a monkey mask and was mistreated by the Byakurenji family. He took Nanao, who was scorned by those around her as "scarred goods," back to his estate and later welcomed her as his legal wife (bride). While he can be fearless and somewhat arrogant on the surface, he is essentially a perfect husband and a true Japanese gentleman who treasures Nanao above all else and loves her with single-minded devotion.

Name: Nanao Benitsubaki Age: 14 (at start) ➔ 17 ➔ 18 Date of Birth: April 8 Blood Type: B Height: 156cm Origin: Byakurenji Family Favorite Food: Pudding Disliked Food: Coffee Born into a branch of the "Northern Byakurenji Family," one of the Five Onmyo Houses. Kidnapped by an Ayakashi (Shojo) as a child, she was branded with an "Ayakashi Mark" on her forehead, leading her clan to mistreat her as "scarred goods." Originally betrothed to Reito Byakurenji, the heir of the main house, the engagement was broken, and she spent miserable days as a servant forced to wear a monkey mask to hide her mark. However, she possesses extremely powerful spiritual energy. Saved by Yako Benitsubaki, the young head of the Benitsubaki family who recognized her talent and beauty, she was welcomed as his fiancée (and later wife). A devoted heroine who gradually regains her true self and happiness through her warm life with the Benitsubaki family.

Name: Issei Kikuoji Age: 25 Affiliation: Imperial Onmyo Bureau, Exorcism Unit, 6th Squad Captain Alias: "Narukami of the Empire" Duty: Regional Defense Appearance: Blond hair and yellow eyes. Wears piercings(?). Personality: A passionate young man with a deep sense of humanity and a straightforward nature. Rivalry: A contemporary of Yako. When he heard Yako was marrying Nanao, he attacked Yako out of jealousy and shock to demand an explanation. Talent of Fujin and Raijin: Possesses the supernatural ability to manipulate lightning and fights using a treasured sword imbued with bolts of lightning. Student Days: Since his time in the 10th Squad, he, Yako, and Reiji Kyogoku mowed down Ayakashi with overwhelming strength, leading the trio to be called the "Three Idiots." Genius of Hard Work: Unlike Yako and Reiji, who have special and powerful lineages (such as divine ancestry), Issei's strength is the result of blood-soaked training to "catch up to and surpass" the two of them. Marriage Interviews: Despite being the heir to the prestigious Kikuoji family, his own marriage interviews never seem to go well. Family Status: 5th in the Eight Junior Onmyo Houses (later 1st). Base: A prestigious family in Asakusa, Tokyo. Achievements: The Kikuoji family eventually rises from 5th to 1st in the rankings.

Name: Reiji Kyogoku Age: 25 Status: "Child of Prophecy" of the Kyogoku Family, ranked 1st among the Eight Junior Onmyo Houses. Affiliation: Imperial Onmyo Bureau, Exorcism Unit, 13th Squad Captain Alias: "Shinigami of the Empire" Persona/Role: A childhood friend born in the same hospital on the same day as Yako. They have been together since birth and are special childhood friends who understand each other's essence deeply. He is a protagonist alongside Yako and Issei in the official spin-off manga, where their youth and episodes like Reiji being on the verge of expulsion are explored. A powerhouse who fights "Outside the Five Elements Barrier." The squads from 10 to 13, including Reiji's 13th Squad, perform top-secret missions outside the barrier, unlike the usual jurisdiction. Consequently, he possesses extremely high combat and stealth capabilities in a different league from Yako, who stands in the spotlight.

Name: Natsuhiko Kokujo Birthday: July 1 Status: Third son of the Kokujo Family, one of the Five Onmyo Houses (younger brother of Haruhiko Kokujo). Affiliation: Imperial Onmyo Bureau, Exorcism Unit, 3rd Squad Vice-Captain Lineage: Grandson of Himiko Kokujo, the 3rd Squad Captain known as the "Guardian Deity of the Empire." Persona/Role: A specialist in barrier techniques. Since his grandmother leads the barrier unit, Natsuhiko is also an exceptionally skilled user of barrier arts. He has a strong sense of responsibility, often working without sleep as a key figure in defense and support, such as deploying large-scale simplified Five Elements Barriers in Asakusa. The "pitiful voice of reason" position. Despite his very handsome looks, he is a character who often finds himself in unfortunate situations, constantly dealing with hardships in the story.

Name: Rentaro Midorikawa Age: 30 Title/Rank: Imperial Onmyo Bureau, Exorcism Unit, 2nd Squad Captain / "Watchdog of the Empire" Duty: Defense of the Imperial Capital (assigned alongside the 1st Squad) Origin: Third son of a branch of the Midorikawa Family, ranked 3rd among the Eight Junior Onmyo Houses. Appearance and Persona: Characterized by a small stature and a baby face. Due to his youthful appearance, he is often mistaken for being much younger, but he is actually the senior (senpai) of major characters like Yako Benitsubaki and Issei Kikuoji. Shikigami: Employs a wolf Ayakashi named Kamihime. Kamihime has an extremely jealous personality. As a binding contract (price), Rentaro bears the very strict restriction that he must remain a "lifelong bachelor."