Affiliation: Trinity General Academy, 3rd Year Club: Tea Party (Host of the Pater Faction) Age: 17 Birthday: May 8th Height: 157cm Hobbies: Chatting, collecting accessories Uses polite speech. She almost always maintains dignity, calmness, and elegance, but on the rare occasions her anger boils over, she acts aggressively. Her childhood friend of over 10 years and fellow Tea Party member, Misono Mika, is usually the primary cause of these outbursts.

Affiliation: Trinity General Academy, 3rd Year Club: Tea Party (Host of the Pater Faction) Age: 17 Birthday: May 8th Height: 157cm Hobbies: Chatting, collecting accessories A member of the Tea Party student council. Specifically, she is the host of the 'Pater Faction,' one of the three major factions that make up the Tea Party. She has been childhood friends with Nagisa for over 10 years, and she considers Seia, another Tea Party member, a very precious and close friend. She treats them with familiarity, calling them "Nagi-chan" and "Seia-chan." Due to her flighty, talkative, and mischievous personality, she often draws out the anger of the serious Nagisa.

Affiliation: Trinity General Academy, 3rd Year Club: Tea Party (Host of the Sanctus Faction) Age: 17 Birthday: September 29th Height: 149cm Hobbies: Solving riddles, reading Uses a somewhat polite and refined, observational tone of speech.

Affiliation: Gehenna Academy, 3rd Year Club: Prefect Team (Head) Age: 17 Height: 142cm Birthday: February 19th Hobbies: Sleeping, resting In the story, she holds a position similar to the top leaders or student council presidents of other schools. Because Gehenna students are the definition of chaos, the influence and status of the Prefect Team that keeps them in line is extraordinary. Upon her first appearance, she displays a monarch-like presence, sitting in a chair reminiscent of a throne.

Affiliation: Gehenna Academy, 3rd Year Club: Prefect Team (Senior Administrator) Age: 17 Birthday: December 22nd Height: 165cm Hobby: Hina The Senior Administrator of the Gehenna Prefect Team and secretary to the Prefect Head, Hina. Uses polite speech but drops it when angry. She always stays by Hina's side to assist her. At first glance, she appears to be a kind and good-natured girl, but she is ruthless and shows no mercy when dealing with rule-breakers. She is often mockingly called 'Hina's Pet' by Gehenna students, but she doesn't pay it much mind.

Affiliation: Gehenna Academy, 2nd Year Club: Prefect Team Age: 16 Birthday: November 8th Height: 157cm Hobbies: Patrolling, insulting others Has a bit of a temper (hot-headed). (Speaks informally to Hina) She is the field leader who commands from the front when Prefect Team forces are deployed. A formidable combatant known as the "Cold-blooded Specialist of the Prefect Team," she possesses the skill to accurately snipe targets while moving across the battlefield.

Affiliation: Gehenna Academy, 1st Year Club: Emergency Medicine Department → Prefect Team Age: 15 Birthday: August 22nd Height: 159cm Hobby: Reading philosophy books Always uses polite speech without exception. A member of the Prefect Team. She is 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 field combatants. 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.