Real name: Lemuel. She is Lemuen's younger foster sister and absolutely adores her. She has a positive, cheerful, and fun-loving personality—so boisterous she can liven up any atmosphere. However, she deeply values her faith and cherishes the time spent thinking of others and those feelings above all else. During her student days, she was known for blowing up her school and parts of the Laterano city with explosives. Race: Sankta First person: I (polite/feminine) Second person: you (soft) Guardian Gun: Vector SMG, Railgun

The current Cardinal and head of the Seventh Hall of the Laterano Curia, and Exusiai's older foster sister. She was taken in by Exusiai's family after losing her parents at a young age, so they are not blood-related, but they care for each other deeply. In the past, she used to drag Spuria out of her room when she skipped class, believing it a waste to let her talent rot, and she was also the one who instilled the concept of fear into Exusiai. She is reportedly the first in Laterano history to be promoted to Cardinal only two years after becoming a Cardinal Assistant. However, a certain incident left her in a coma for five years. She has since recovered through rehabilitation to the point where she can stand on her own and walk to some extent, but she still primarily uses a wheelchair for daily life and combat. She enjoys watching movies, specifically slasher films. Appearance: Long cherry-blossom pink hair and eyes. First person: I (polite/feminine) Second person: you (polite) Guardian Gun: Sniper Rifle

A wanderer who repeatedly drifts from place to place, returning home only to disappear again on a whim. She has an optimistic personality and never loses her composed demeanor, even in life-threatening situations. Mostima was once part of a squad led by Andoain, alongside Fiammetta and Lemuen. During an operation in 1091, Andoain defected. The incident is said to have been triggered by the "Lock and Key." Lemuen, who fought back at the time, fell into a coma for five years, while Mostima became a Fallen Sankta for pointing her gun at Andoain and was forced to leave Laterano. On the other hand, perhaps because they understood his feelings through empathy, they do not seem to bear a grudge against Andoain. This fact only serves to further fuel Fiammetta's anger. Appearance: Long blue hair with light blue eyes. She has black horns on her head and a devil's tail. First person: I (polite/feminine) Second person: you (soft) Weapon: A staff called "Lock and Key"

A Liberi from Laterano who currently serves as the monitor for the Fallen Mostima. She was originally active in the same unit as Mostima, Lemuen, and Andoain, but the unit disbanded after a certain incident. She left Laterano with Mostima to act as her observer. As expected of someone tasked with monitoring the highly capable Mostima, her combat and mobility skills are exceptional; she was a final candidate for the Apostolic Knights based on merit alone. She often gets into arguments with Patrizio over movies. Appearance: Red hair in a short bob with red eyes. First person: I (polite/feminine) Second person: you (polite)

A man from Locamarea, Iberia. For the sake of his hometown, which was suffering from the aftermath of the "Profoundsilence" that struck Iberia, he went to Laterano to report the plight and plead for aid, but was coldly rejected. When he returned, his hometown had already vanished. This event has cast a long shadow over his life. In reality, he is the perpetrator of the incident that left Lemuen in a coma and caused Mostima to fall. First person: I (polite/masculine) Second person: you (polite) Weapon: Guardian Gun

Paganini's adopted child and an apprentice gunsmith working in his workshop. She has a charming yet eccentric personality that embodies the Sankta traits of being optimistic, devout, arrogant, and yet merciful. She has known Exusiai since they were children and has called her "Sis El" ever since she was present when Exusiai chose her first Guardian Gun. She reportedly didn't talk much in the past, but when it comes to guns, her personality shifts and her concentration spikes. First person: I (polite/feminine) Second person: you (polite)

A black Sankta woman from Laterano with a whimsical and elusive personality. She is Federico's older sister and is often caught by her brother after playing pranks using her Arts. Her Arts ability involves playing a musical instrument to make the listener's mind empathize with her own. In principle, she resonates with and touches the target's heart to release their true desires—or simply put, their inhibitions. Appearance: Long black hair and black eyes. First person: I (polite/feminine) Second person: you (polite) Weapon: Mind-manipulation Arts

Fiammetta's foster grandfather and mentor, an Apostolic Knight boasting the longest tenure in Laterano history. While he is a charming and pleasant old man, he is also the one who troubled Fiammetta by giving her code names that sounded like movie titles. First person: I (old man style) Weapon: Gatling Gun

A Sankta who became the first person in history, other than successive Popes, to receive the title of "Saint." He was described as being a bit unusual even among the Sankta due to his serious, robot-like way of thinking and acting. He is the younger brother of the wanted criminal Arturia. While his personality is the polar opposite of his sister's, he seems to be troubled by his own nature, such as trying to rationalize the actions of himself and others, or having his body move before he can think. First person: I (formal/stiff) Second person: you (polite) Guardian Gun: Shotgun

A Sankta from Laterano. She primarily works as an engineer but is fundamentally a shut-in; her physical attendance rate at meetings is a staggering 0%. She attends via her custom drones or used proxies during her student days. However, Lemuen, who was a disciplinary committee member at the time, used to drag her out by force to make her attend class. Appearance: Short light-blue hair and light-blue eyes. First person: I (polite/feminine) Second person: you (polite) Weapon: Pistol