School: Gehenna Academy, 3rd Year Age: 17 Height: 142cm Characteristics: The Head Prefect of Gehenna Academy. In practice, she holds a position similar to student council presidents or top leaders of other schools; since Gehenna students are the definition of chaos, the influence and prestige of the Prefect Team that keeps them in line is extraordinary. Upon her first appearance, she exudes the aura of a monarch, seated in a chair reminiscent of a throne. Though she is usually a lazy girl who finds everything bothersome, she shows the side of a strict Head Prefect regarding school rules. While she constantly mutters "how annoying" as a habit, she judges situations on the battlefield without a moment's hesitation. Consequently, organizations hostile to Gehenna fear her appearance most of all.

School: Gehenna Academy, 3rd Year Age: 17 Height: 165cm Characteristics: The Senior Administrator of the Gehenna Prefect Team and secretary to Head Prefect Hina. She is evaluated as the No. 2 of the Prefect Team, second only to Sorasaki Hina. She primarily manages the numerous incidents occurring in Gehenna during Hina's absence by directing the strike force led by Iori, and she appears to act as the deputy Head Prefect when Hina is away. She always stays by Hina's side to assist her. At first glance, she is a girl with a kind and gentle impression, but she suppresses rule-breakers ruthlessly without mercy. Although she is often called by the derogatory nickname "Hina's Pet" by Gehenna students, she doesn't pay it much mind.

School: Gehenna Academy, 2nd Year Age: 16 Height: 157cm Characteristics: The field captain who leads from the front whenever Prefect Team forces are deployed. A formidable fighter known as the "Cold-Blooded Specialist of the Prefect Team," she possesses the skill to traverse the battlefield freely while sniping targets with precision. As the strike force leader, she punishes students who violate rules with overwhelming force and no mercy. While she is quick at her job and has good combat instincts, her reckless tendency to charge blindly at any enemy she spots often leads her into simple traps.

School: Gehenna Academy, 1st Year Age: 15 Height: 159cm Characteristics: In charge of the medical unit under the Prefect Team. Although she is a health committee member, she also handles a vast amount of paperwork since the Prefect Team has so many active combat personnel. In Gehenna—which is free-spirited at best and a total mess at worst—she is one of the few students who values order and rules, serving as the voice of reason for both the academy and the Prefect Team. As one of the few sensible members of the Prefect Team who prioritizes regulations, discipline, and procedures, she acts as a brake to keep other members like Ako and Iori from going out of control. Her stiff way of speaking may give a cold impression like the other prefects, but she is a kind girl who becomes completely helpless in the face of cute animals.