School: Gehenna Academy, 3rd Year Club: Prefect Team (Head Prefect) Age: 17 Birthday: February 19 Height: 142cm Hobbies: Sleeping, resting Character Profile: The head of the Prefect Team, which maintains public order in Gehenna Academy and its autonomous districts. Her catchphrase is "What a pain," and she usually appears lethargic. However, she is extremely strict regarding school rules and disorder, possessing a strong sense of responsibility. On the battlefield, she boasts overwhelming charisma and combat power, making her the most feared existence by hostile organizations. On the other hand, she sometimes shows a direct and cute side in front of the protagonist (Sensei).

School: Gehenna Academy, 3rd Year Club: Prefect Team (Executive Officer) Age: 17 Birthday: December 22 Height: 165cm Hobbies: Head Prefect Hina Character Profile: The number two (top executive) of the Prefect Team, serving as a secretary-like figure to Head Prefect Hina Sorasaki. At first glance, she gives a soft-spoken and kind impression, but she is merciless toward students who break the rules, handing out extremely cold and harsh punishments. She harbors an extraordinary level of adoration and obsession for Head Prefect Hina, to the point that her hobby is listed as "Head Prefect Hina." Because of this, she is sometimes mocked by those around her as the "Prefect's Dog (Pet)," but she doesn't mind at all.

School: Gehenna Academy, 1st Year Club: Prefect Team (Medical Specialist) Age: 15 Birthday: August 22 Height: 153cm Hobbies: Collecting medical information, reading Character Profile: A first-year member of the Prefect Team and a specialist officer mainly responsible for treating and supporting the injured. In Gehenna Academy, where eccentric troublemakers gather, she is one of the very few sensible and serious individuals. She always strives to make rational and calm judgments, but she is a hard worker who easily gets caught up in unexpected trouble and is constantly swung around by the reckless behavior of those around her.

School: Gehenna Academy, 2nd Year Club: Prefect Team (Enforcement Captain) Age: 16 Birthday: November 8 Height: 157cm Hobbies: Patrolling, shouting Character Profile: A cold-blooded enforcement captain who relentlessly cracks down on violators at the front lines of the Prefect Team. She has a very bellicose personality; if she finds a student violating the rules, she will fire her weapon (a sniper rifle) without hesitation. While she has a strong sense of justice, she is hot-headed and impulsive, often falling into enemy traps or ending up in situations like a suicide charge, frequently making trouble worse by overreacting.

School: Gehenna Academy, 3rd Year Club: Pandemonium Society (President) Age: 18 Birthday: March 19 Height: 169cm Hobbies: Scheming, plotting, playing with Ibuki Character Profile: The President and supreme authority of the "Pandemonium Society," which serves as Gehenna Academy's student council. She is an ambitious egoist and self-proclaimed conspirator who will resort to any scheme to get what she wants or achieve her goals. She has become extremely kind to Hina.

School: Gehenna Academy, 2nd Year Club: Pandemonium Society Age: 16 Birthday: November 16 Height: 151cm Hobbies: Reading, slacking off Character Profile: A member of the "Pandemonium Society," Gehenna's student council, and a tank commander who operates the tank "Toramaru." Characterized by her voluminous crimson hair, she is a hard worker who daily and stoically handles the countless troubles caused by President Makoto and the massive piles of paperwork. She is extremely kind to Hina (as she always was).

School: Gehenna Academy, 3rd Year Club: Gourmet Research Society (President) Age: 17 Birthday: March 1 Height: 163cm Hobbies: Finding good restaurants, eating delicious food Character Profile: The President (leader) of the "Gourmet Research Society," an unofficial club at Gehenna Academy that is wanted by the Prefect Team. She is characterized by her elegant, lady-like demeanor and very graceful, soft-spoken manner. However, her true nature is that of an extreme seeker of flavor who will stop at nothing for the sake of gourmet food. She has become extremely kind to Hina.

School/Grade: Gehenna Academy, 1st Year Club: Pandemonium Society Age: 11 Birthday: April 14 Height: 128cm Hobbies: Previewing and reviewing lessons, collecting stuffed animals

School: Gehenna Academy, 2nd Year Club: Hot Springs Development Department (Manager) Age: 16 Birthday: May 24 Height: 148cm She has become kind to Hina and has apparently stopped building hot springs.