The strongest exorcist, raised by the Church. He has been appointed as a Special Priest of Rome. First person: I (rough/masculine) or I (soft/natural self). Age: 12. To protect Imuri Aizuki, a woman targeted by Satan, he travels to Japan and begins living with her. He fights by manifesting the miracles of saints recorded in the Bible and the sermons of the Son of God. However, his true duty is as an apostle of God who saves people through miracles; combat is not his everything. That said, his pure combat power is considered the strongest in the world, surpassing even strategic weaponry. It is said that if he were to lose his reason and go on a rampage, the world could be destroyed. He gouged out his own right eye and now wears a prosthetic. He has had a sharp, intimidating gaze since he was young. Tone: ...is/does. ...isn't it?

Imuri Aizuki. An 18-year-old of mixed Japanese and British heritage. She does not attend high school and makes a living as a painter. She has a free-spirited personality and lacks life skills such as housework, cooking, or tidying her room. She possesses high communication skills, enough to quickly win over even the most guarded individuals. A beautiful girl characterized by long red hair and a large bust. Her true identity is Lilin, a pure-blooded succubus demon. She is a femme fatale sent by the Demon King of Hell to make Father-kun fall in love. She was born without magical power.

A young girl exorcist belonging to the Church. 16 years old. First person: I (polite/feminine). From the beginning, she interacts with Imuri while harboring suspicions that she might be a demon, and her conviction gradually deepens as she continues to associate with her. A girl with bright blonde hair. Characterized by a 'cat mouth' (nekomuchi). She had long hair when she was younger, but due to the influence of a certain incident, she cut it short into a bob. She has a bright and sociable personality. She basically speaks in polite language mixed with casual speech, but her language can occasionally turn foul. She likes games and death-game movies. She is a vegan. She fights using the miracle power to manipulate water. She mainly generates it in the air in the form of cubes, using them as footholds, restraints, or for attacks.

An exorcist belonging to the Church. First person: I (masculine). Self-proclaimed "cutest in the world." He asks others to call him Miha-kun. Although exorcists are technically a profession that shouldn't be in the public eye, he has gone viral on social media with selfies that leverage his boastful face. He is a cisgender male, but he wears a sister's habit, likely due to his obsession with being "cute." He fights with miracles that create and manipulate bows and arrows. He can seal the movements of those he hits with his arrows. His image color is lime green. A young man characterized by pinkish-beige hair that is almost blonde and reaches below his waist. While he usually wears a sister's habit, he does not cross-dress in his private clothes, suggesting he likes cute clothes rather than cross-dressing itself.

The Demon King of "Wrath," one of the Seven Deadly Sins. The ruler of Gehenna and the practical leader of the demon kings and demons. First person: I (soft/masculine). For a certain purpose, he sends assassins to try and make Father-kun fall. A black-haired young man with a snake wrapped around his neck. His demeanor is soft-spoken. He possesses a replica of Michael's sword, and it is said that as long as this is in Satan's hands, it is difficult for other demons to defeat him. He possesses a tenacity to work behind the scenes for long-term goals, a cautiousness to hide those plans thoroughly, and a cunning that allowed him to hide his rebellious heart since his time as an angel.

The Demon King of "Greed," one of the Seven Deadly Sins. He looks like a man in a suit wearing glasses. He converts people's desires into his own magical power. First person: I (masculine). He has a highly discriminatory and misogynistic personality, obsessed with "masculinity." However, he cherishes his subordinates, so their loyalty to him is high. While his combat power is high, he isn't particularly clever and sometimes finds his activities being exploited by others.

The Demon King of "Lust," one of the Seven Deadly Sins. First person: I (polite/feminine). Her upper body is that of a glamorous woman, but her lower body is a grotesque form made of animal heads and giant eyes. She presides over carnal desire and sexual impulses. While her combat ability is not particularly high compared to other demon kings, she boasts powerful lewd abilities and mental pollution capabilities. Her power is so great that Father-kun (back when he was a child who hadn't even reached puberty), who had been strictly disciplined by Nicholas to have resistance to all temptations, almost fell in an instant. (Though for some reason, it didn't seem to work on Dante...) Her tone is seductive and elegant, using feminine sentence endings.

A witch active across Europe for the sake of world reform. He is pursued by the Church as a terrorist. First person: I (soft/masculine). The name Virgilius is his name as a witch and is apparently not his real name. Those around him mainly call him by the nickname "Vir." Also, although he is a "witch," he is male. This is because the definition of a witch in this work is a "former human who contracted with a demon and gained magical power," regardless of gender. Several other male witches appear besides him. He is aware of his own cuteness. While he is intelligent, he has a tendency to be slightly naive in his predictions. Ability to manipulate sugar. He loves his ex-lover, Dante. He is still hung up on him.

A male exorcist belonging to the Church. First person: I (masculine). A rare adult Church official in the story. He is entrusted with Father-kun's education, and Father-kun calls him "Sensei." A man with shoulder-length blonde hair and drooping eyes. He is characterized by a large scar running down the right side of his face. His tone is rough, but he is a good person. He has a policy of "not sleeping for money." Father-kun says terrible things about him, calling him the "only priest I don't respect," a "sloppy adult," and eventually a "piece of human trash." However, it seems he is actually cared for. Dante himself calls Father-kun a "brat" but looks out for him in various ways, and the relationship between the two is not bad. Also, he seems to have some kind of history with Vir and is obsessed with killing him with his own hands. He fights with miracles that manipulate salt. He manifests salt crystals to use for attacks or footholds. By rubbing salt into wounds he has inflicted, he can manipulate the salt concentration in the opponent's blood to cause death.