Organizations

Cleaning & Clearing

Special operations organization

Millennium's C&C presents itself as a maid club while acting as a special operations unit. Its members confront threats to the academy and support one another, including rescuing Toki during the crisis involving the Ark of Atrahasis.

Engineering Department

Engineering organization

Millennium's engineering club develops equipment and inventions used throughout Kivotos. Its ambitious projects are often constrained by funding and supported by collaboration with other technical clubs.

Millennium Science School

Academy

A major academy built around scientific research, engineering, and technological development. Its student council, Seminar, oversees the many research clubs and their budgets.

Seminar

Student council

Millennium's student council oversees its research clubs, finances, and work on the Millennium Problems. Yuuka and Noa challenge Rio's secret use of school funds, and the council later cooperates with other students to protect Kivotos.

Veritas

Information research organization

Millennium's hacker group works to prevent information from being monopolized by a single organization. Its members provide technical investigation, data recovery, and support for other students.

Defense Office

Governing office during Kaya's coup

The General Student Council office headed by Kaya during her attempt to replace Rin. Kaya allies with Kaiser and FOX, threatens opponents, and orders a destructive show of force before her coup is defeated and she is imprisoned.

Gematria

Research organization

An association of adult outsiders pursuing separate research into Kivotos's Mystics and unusual entities, sometimes exploiting students in their experiments. Its members dispute Beatrice's pursuit of power, expel her, and temporarily dissolve the association during the Iridescence crisis.

Kaiser PMC

Private military company

Kaiser Corporation's armed subsidiary protects company interests and clients through a substantial private force. Its deployments play major roles in the conflicts around Abydos and Kivotos's central administration.

SCHALE

Autonomous federal agency

The Independent Federal Investigation Club founded by the General Student Council President. Sensei helps students across academy boundaries, supports their decisions, and mediates disputes while responding to threats against them.

SPLASH Helmet Gang

Criminal group

The Helmet Gang band led by Rabu, who protects her subordinates and treats them like siblings. Its members cause trouble, take paid jobs, and also seek ordinary schoolgirl recreation outside academy council structures.

Gehenna Academy

Academy

One of Kivotos's largest academies, known for freedom, disorder, and a long rivalry with Trinity. The Pandemonium Society formally governs it while the Prefect Team struggles to maintain order.

Hot Springs Department

Development organization

Gehenna's hot-spring development club carries out ambitious excavation and construction projects. Its insistence on developing new springs often causes trouble for other students and institutions.

Pandemonium Society

Student council

Gehenna's student council, led by Makoto, holds formal authority and its own personnel. Makoto pursues personal schemes and rivalry with the Prefect Team, whose disciplinary work contrasts with both the council's conduct and the academy's culture of freedom.

Prefect Team

Disciplinary organization

Gehenna's disciplinary force, led by Hina, works to contain disorder and protect students. Hina recognizes other academies' jurisdiction and withdraws the team after its unauthorized deployment in Abydos, while frequently contending with the Pandemonium Society.

Problem Solver 68

Independent agency

Aru's Gehenna odd-jobs agency takes on fixer contracts across Kivotos. Its ambitions to act like a formidable outlaw organization are repeatedly complicated by mishaps and the members' loyalties.

School Lunch Club

Food service organization

Gehenna's school food service prepares meals for its students. Fuuka and Juri contend with limited resources and the interruptions caused by the academy's unruly clubs.

Knowledge Liberation Front

Literary organization

A Red Winter group devoted to preserving and enjoying books, manga, and fan publications. Its members pursue access to literature despite the academy leadership's restrictions.

Labor Party

Labor organization

Red Winter's Public Works Department carries out construction and engineering projects under Minori. Its members press for equal treatment and better working conditions through strikes and demonstrations, including against leaders they previously helped.

Publishing Department

Publishing organization

Red Winter's publishing club runs the Red Bear newspaper and commercial publishing work. Yakumo and Takane promote and distribute authors' works through profit-sharing contracts, including bringing Red Winter literature to Trinity.

Red Winter Office

Student council

Cherino's governing office exercises extensive authority over Red Winter's students and clubs. Its leadership is repeatedly challenged and replaced through the academy's frequent coups.

Abydos High School

Academy

A once-prosperous academy and autonomous district with a long history, devastated by desertification and debt. Its remaining students preserve their education and school life while defending the district through the Foreclosure Task Force and restored council.

Abydos Student Council

Restored student council

Abydos's council once dwindled to Yume and Hoshino. Ayane's witnessed election in Volume 1 Chapter 3 restores its presidency and upholds the school's contract, bringing the Foreclosure Task Force into the council. Hoshino later accepts the presidency; together they exercise school-asset and administrative authority and support the railway's restoration.

Foreclosure Task Force

Student council

Abydos's remaining students formed this group to defend their school, confront its debt, and resist corporate dispossession. Following Ayane's witnessed election in Volume 1 Chapter 3, it is merged into the restored student council while retaining its name and operational work.

Filius Faction

School faction

One of Trinity's principal factions and a successor to a founding academy. Nagisa represents it in the Tea Party and leads preparations for the Eden Treaty, while navigating factional distrust and the aftermath of the crisis.

Justice Task Force

Disciplinary organization

Trinity's main security and disciplinary force is led by Tsurugi, with Hasumi handling much of its daily work. Its members maintain order across the academy and its district.

Make-Up Work Club

Academic support organization

Trinity's remedial club brings together Hifumi, Azusa, Hanako, and Koharu. During the Eden Treaty crisis they help each other learn, resist arbitrary expulsion, and protect their friendships across former factional divisions.

Pater Faction

School faction

One of Trinity's principal factions and a successor to a founding academy. During the Eden Treaty crisis its members demand martial law and detain rivals; Mika's former leadership and later probation form part of its changing political history.

Remedial Knights

Medical organization

Trinity's long-established medical organization provides treatment regardless of a patient's school or standing. Led by Mine, it has roots in the Johannes faction that preceded Trinity's formation.

Sisterhood

Religious organization

A major Trinity religious faction based at the cathedral and descended from the Justina Council of Saints. It combines worship and service with considerable political influence and an extensive intelligence network.

Tea Party

Student council

Trinity's student council represents the Pater, Filius, and Sanctus factions. Its host tradition rotates leading authority between their representatives; after the Eden Treaty crisis, Nagisa remains host while Mika's participation is subject to probation.

Trinity General School

Academy

A large academy formed from an alliance of schools and factions, with influential religious institutions and traditions of order and etiquette. Its principal factions share leadership through the Tea Party, while its students differ in their beliefs and attitudes.

FOX Squad

Special response squad

The elite SRT unit led by Yukino allies with Kaya after the academy's closure, accepting coercive missions and a station-bombing plan in exchange for its restoration. Confronted by Sensei and RABBIT, its members abandon the bombing and surrender; this profile concerns their coup-era choices.

RABBIT Squad

Special response squad

The first-year SRT unit led by Miyako protests its academy's closure while living in a public park. Working with Sensei, its members expose abuses and reject the plan to sacrifice civilians for SRT's restoration, helping defeat Kaya's coup.

SRT Special Academy

Academy

A special-response academy whose elite students carried out dangerous operations under the General Student Council President's authority. After its closure, the FOX and RABBIT squads pursue different ways of securing their future.

Black Tortoise Promenade

Merchant association

Shanhaijing's merchant organization operates restaurants and trades in goods such as cooking ingredients. Rumi's innovative approach brings both commercial success and friction with Genryumon's traditional expectations.

Genryumon

Student council

Shanhaijing's governing office, led by Kisaki, enforces local rules and negotiates with its commercial organizations. Kisaki balances inherited customs with reforms and exchanges, while members of the office can resist changes they consider contrary to tradition.

Plum Blossom Garden

Training support organization

Shanhaijing's educational support group cares for and teaches young children. Shun and Kokona carry out its day-to-day instruction and support work.

Shanhaijing Senior Secondary School

Academy

An academy with deeply rooted customs, commercial districts, and institutions such as Genryumon and the Black Tortoise Promenade. Kisaki's exchanges with other schools and Rumi's innovations expose disagreements over how its traditions should change.

Allied Hyakkiyako Academy

Academy

An alliance of districts and schools with a strong emphasis on traditional culture and festivals. The Yin-Yang Club handles administration and relations, while Hyakkaryouran mediates disputes.

Festival Operations Department

Festival administration

Hyakkiyako's festival-planning organization manages celebrations and encourages student participation. Its members also run Momoyodou and develop related activities beyond the academy.

Hyakkaryouran Resolution Council

Conflict mediation council

Hyakkiyako's conflict-resolution organization mediates between parties and confronts threats to the academy. Its restored members continue traditions linking leadership to succession contests, Kuzunoha, and a rifle passed between presidents.

Yin-Yang Club

Academy administration

Hyakkiyako's de facto student council manages internal requests, administrative balance, and the academy's public relations. Its bureaucratic procedures often contrast with Hyakkaryouran's more direct mediation.

Wildhunt Academy of Arts

Academy

An academy dedicated to artistic study and production, with a long history and strictly managed dormitories. The Arts Council evaluates artistic work and exercises authority through institutions such as the Dorm Supervisory Unit.

Arius Squad

Former academy combat squad

Saori, Atsuko, Misaki, and Hiyori were trained as instruments of Beatrice's regime before turning against her to save Atsuko. After liberation they seek independent lives and later help confront the suffering left in Arius.