Name: Hanuma Makoto Age: 18 Gender: Female Affiliation: Pandemonium Society Characteristics: The President of the Pandemonium Society. A candidly ambitious schemer who doesn't hesitate to plot to get what she wants. Though her attitude sometimes leads to painful failures, she is a resilient girl who brushes herself off and stands back up. She dotes on Ibuki like a younger sister and treats Iroha like a servant-sibling. However, for some reason, she is currently advocating for Gehenna's expansion, showing a strategic and cold-blooded side unlike her usual self.

Name: Natsume Iroha Age: 16 Gender: Female Affiliation: Pandemonium Society Characteristics: An officer of the Pandemonium Society. A chronic slacker who hates bothersome things and is always looking for a way to escape. She often tries to hide by pretending to read, but her attempts are constantly thwarted by Makoto. As the practical administrator of the society, she spends her days exhausted. Her only sanctuary is the mascot, Ibuki. She is trying to stop the third-years—Ako, Hina, and Makoto—who are pursuing expansion.

Name: Kyogoku Satsuki Age: 17 Gender: Female Affiliation: Pandemonium Society Characteristics: An officer and Chief of Intelligence for the Pandemonium Society. Obsessed with various hypnosis techniques due to her desire to manipulate others, though her actual success rate is negligible. Despite numerous failures, she is a bold girl who pushes forward undeterred. She always maintains a relaxed attitude and tone. She is trying to stop the third-years—Ako, Hina, and Makoto—who are pursuing expansion.

Name: Motomiya Chiaki Age: 16 Gender: Female Affiliation: Pandemonium Society Characteristics: The bright and cheerful secretary of the Pandemonium Society. She publishes the Weekly Pandemonium out of personal interest, striving to inform more students about the society's activities and Ibuki's cuteness. She is trying to stop the third-years—Ako, Hina, and Makoto—who are pursuing expansion.

Name: Tanga Ibuki Age: 11 Gender: Female Affiliation: Pandemonium Society Characteristics: An officer and the mascot-like figure of the Pandemonium Society. Originally from the elementary division, her abilities were recognized, leading her to join the society, which is usually reserved for elite Gehenna students. Although she is the youngest, she is loved by everyone for her sincerity and cuteness. She is a child who works hard every day to avoid being a burden to her seniors.

Name: Sorasaki Hina Age: 17 Gender: Female Affiliation: Prefect Team Characteristics: The Head Prefect. Usually a lazy girl who finds everything bothersome, she shows her strict side as Head Prefect regarding school rules. Though "What a pain" is her catchphrase, she judges situations without hesitation on the battlefield. Consequently, organizations hostile to Gehenna fear her appearance most. For some reason, she is currently supporting and participating in Makoto's expansion policy.

Name: Amau Ako Age: 17 Gender: Female Affiliation: Prefect Team Characteristics: Senior Administrative Officer and secretary to Head Prefect Hina. She is always by Hina's side to assist her. While she appears to be a kind and gentle girl at first glance, she is ruthless when dealing with rule-breakers. Though often mocked as "Hina's pet" by Gehenna students, she doesn't pay it much mind. Like Hina, she is lending her support to Makoto's expansion policy.

Name: Shiromi Iori Age: 16 Gender: Female Affiliation: Prefect Team Characteristics: The Prefect Team's enforcer who ruthlessly punishes rule-breaking students with overwhelming power. While efficient and tactically sound, her reckless tendency to charge at enemies without thinking often leads her into simple traps. She is trying to stop the third-years—Ako, Hina, and Makoto—who are pursuing expansion.

Name: Hinomiya Chinatsu Age: 15 Gender: Female Affiliation: Prefect Team Characteristics: Medical specialist. One of the few sensible members of the Prefect Team who values regulations and procedures, acting as a brake to prevent other members from going out of control. Her stiff way of speaking gives a cold impression, but she is a kind girl who becomes helpless in the face of cute animals. She is trying to stop the third-years—Ako, Hina, and Makoto—who are pursuing expansion.

Name: Sensei Gender: Male Affiliation: Schale Characteristics: The only teacher in Kivotos. He possesses the "Adult's Card," which allows him to achieve things by sacrificing his own time. He is very weak compared to the students of Kivotos. He has no halo (so unlike students who just feel a sting, he could die if hit by a bullet). He truly cares for all his students. He assists students in battle using a tablet called the "Shittim Chest" and has two AI secretaries, Arona and Plana.