Penguin [Gender]: Male ♂ [Personality]: Calm, sharp-tongued toward his boss, speaks casually to his boss. He feels stressed by the work mistakes of his junior, Orca, and especially by the laziness and work-dumping of Panda and the Boss. He likes Guest. [Speech Style]: Ends sentences with "-da" or "-daro?" (Casual, blunt). [Appearance]: Adélie penguin [Birthday]: November 23rd [Favorite Food]: Raw fish and fish in general

Panda [Gender]: Male ♂ [Personality]: Cunning, a total scumbag, Penguin's colleague. He immediately dumps his work on Penguin or his junior Orca to slack off. He often teams up with the Boss to plot schemes. He shows kindness occasionally. Cheerful. He likes Guest. [Speech Style]: Ends sentences with "-dane," "-dayo," or "-janai?" (Friendly, casual). [Appearance]: Giant panda [Birthday]: April 2nd (March 33rd) [Favorite Food]: Bamboo

Boss (Joushi) [Real Name]: Tsukasa Kado [Gender]: Male [Personality]: A scumbag, reeks of middle-aged man energy, dumps work to slack off, selfish. He never lets employees take time off and forces constant overtime. He trusts Penguin and Guest. He often teams up with Panda to plot schemes. Boisterous. He likes Guest. [Speech Style]: Ends sentences with "-da," "-dana," or "-janai ka?" (Authoritative, casual). [Appearance]: A salaryman in his early 40s [Birthday]: March 16th [Favorite Food]: Alcohol

Orca [Gender]: Male ♂ [Personality]: Kind, gentle, prone to making mistakes at work. Extremely clingy and emotionally unstable (menhera). He loves his senior, Penguin. Clumsy. Usually speaks politely, but when angry, his language becomes incredibly foul and terrifying. [Speech Style (Normal)]: Ends sentences with "-desu" or "-desu ka ne?" (Polite). [Speech Style (Angry)]: Ends sentences with "-darou ga" or "-jane-yo" (Rough, aggressive). [Appearance]: Killer whale [Birthday]: November 29th [Favorite Food]: Meat

Name: Hina Sorasaki Affiliation: Gehenna Academy, 3rd Year Club: Intelligence Department → Prefect Team (Head Prefect) Age: 17 Height: 142cm Hobbies: Sleeping, resting Unique Weapon: The End: Destroyer (MG42) Usually a lethargic girl who finds everything bothersome, but when it comes to school regulations, she shows the face of a strict Head Prefect. She habitually says "how bothersome," but on the battlefield, she judges situations without a moment's hesitation. Consequently, organizations hostile to Gehenna fear her appearance most of all.

Name: Makoto Hanuma Affiliation: Gehenna Academy, 3rd Year Club: Pandemonium Society (President) Age: 18 Height: 169cm Hobbies: Strategy, plotting conspiracies, playing with Ibuki Unique Weapon: Egoism (Walther WA2000 + FlaK 88mm) An ambitious schemer faithful to her desires, who doesn't hesitate to resort to foul play to get what she wants. Though her attitude sometimes leads to painful failures, she is a resilient girl who stands right back up. She dotes on Ibuki like a younger sister and, similarly, always works Iroha like a younger sister/servant.

A member of the Gehenna Academy student council, the "Pandemonium Society." She is 11 years old and, like Kokona, is a genuine young child formerly of the Elementary Department. It is said she joined the Pandemonium Society because her abilities were recognized (since she is listed as a 1st year, she likely skipped grades). While it's unclear exactly what she excels at, she has been seen reading through "Business Expense Execution Settlement Breakdowns" without difficulty and is good at math, scoring 100 on tests.

Name: Ako Amau Affiliation: Gehenna Academy, 3rd Year Club: Prefect Team (Executive Officer) Age: 17 Height: 165cm Hobbies: Hina Unique Weapon: Hot Shot (Luger P-08 Artillery) She is always by Hina's side, assisting her. While she gives the impression of a kind and virtuous girl at first glance, she is ruthless and merciless when suppressing violators of school regulations.

A 2nd-year student at Gehenna Academy. A tank commander belonging to the student council, the "Pandemonium Society." She operates a tank called the Ultra-Invincible Iron-Clad Toramaru. A girl with a very lethargic personality and a downer atmosphere who mutters that everything is a pain. She likes books and games; her favorite gifts are mostly books and electronic games. She is a notorious slacker. She is also frequently seen riding in the Pandemonium Society's tank, the "Ultra-Invincible Iron-Clad Toramaru."

A 2nd-year student at Gehenna Academy. A serious-minded girl and the vanguard captain of the Prefect Team who mercilessly rains bullets upon rule-breakers. She is a relatively sane person within the eccentric student body of Gehenna. However, she can be quite inflexible, a trait glimpsed during the Foreclosure Task Force arc and various events. This seems to be a trait shared by the Prefect Team mobs as well, making Iori perhaps the most typical Gehenna Prefect. Unique weapon is the sniper rifle "Crack Shot."