Toaru Majutsu no Index Wiki

The Parameter List (素養格付パラメータリスト Soyō Kakuzuke (Paramēta Risuto)?, lit. "Accomplishment Ranking") is a database of espers and their potential levels. It is used as a basis of comparison for esper development procedures and the efficiency of said procedures. How this list came to be is yet unrevealed in the novels.


What Parameter List exactly contains is uncertain, but it might have been used to determine if the esper developed through the Power Curriculum Program would compensate for the cost of producing it. For example, a person who has the potential to become a Level 4 quickly would receive more focus on their development such as better facilities and resources than those who can only go up to Level 2 in the list.[1] It is regarded as "a more cruel determinant of Levels than System Scan".

Based on the Parameter List, researchers took Misaka Mikoto's DNA map for the 'Level 5 mass production project' while Mikoto was still only a Level 1.[1]

The existence of this database is kept top secret by the Board of Directors to avoid any social unrest caused by the exposure of the information in the database.[1]


Toaru Majutsu no Index[]

World War III Arc[]

Main article: World War III Arc

During World War III, the existence of this list was revealed to Hamazura Shiage, and he proceeded to extract more information about it from a helmeted woman sent to eliminate him on behalf of the higher-ups, to use as a bargaining chip against them.[1]

Shinyaku Toaru Majutsu no Index[]

Mental Out Arc[]

Main article: Mental Out Arc

The city's scientists and the Board of Directors used the list to determine who between Shokuhou Misaki and Mitsuari Ayu would be the Telepath to be given support to reach Level 5.[2][3]

Processor Suit Arc[]

Main article: Processor Suit Arc

Shiage kept the Parameter List information in a data chip in his ear, as a bargaining chip so he and Item could live relatively peacefully without being targeted by the Dark Side of Academy City. The microwave-induced heat wave in December damaged the chip and resulted in the data being lost.[4]



v  e
Academy City
Inhabitants Faculty and Staff Students
Factions and Organizations Board of Directors (Board Chairman) • JudgmentAnti-SkillCooperative InstitutionsUseful SpiderSkill-Out
Locations School Districts School District 1 (Administration) • School District 2 (Military & Law Enforcement Training) • School District 3 (Outsider Accommodation) • School District 4 (Food) • School District 5 (Universities and junior colleges) • School District 6 (Recreation) • School District 7 (Middle & High Schools, Student Accommodations, Hospitals) • School District 8 (Faculty Accommodation) • School District 9 (Industrial and fine arts) • School District 10 (Reformatory, Nuclear Research, Cemetery) • School District 11 (Goods transfer) • School District 12 (Theology) • School District 13 (Kindergarten and primary schools) • School District 14 (Overseas Students) • School District 15 (Shopping & Mass Communication) • School District 16 (Commerce) • School District 17 (Industry) • School District 18School District 19School District 20 (Sports and athletics) • School District 21 (Water storage & Observatory) • School District 22 (Underground development) • School District 23 (Aerospace)
Other Notable Locations School District 7: Windowless BuildingHeaven Canceller's HospitalA Certain High SchoolKamijou ResidenceSchool Garden (Tokiwadai Middle School)
Other: Imaginary Number DistrictReformatoryExternal Connection Terminals
Power Curriculum Program Esper (Level 0Level 1Level 2Level 3Level 4Level 5Level 6 (SYSTEM)) • Personal RealityEsper AbilitiesAIMSystem ScanLevel 6 ExperimentsParameter List
Notable Technology Tree DiagramHikoboshi IIBankAirshipCleaning RobotSecurity RobotWind TurbinePowered SuitNanodeviceSupersonic Passenger PlaneHard Science
Events (Timeline) Regular DaihaseisaiIndependence DayIchihanaransaiSummer City Flood Prevention ProgramAnti-Crime Orientation
Other 0930 IncidentInterceptor ShowAvignon Cleanup OperationWorld War IIIDecember Heatwave48 Hours to Restore OrderEvacuation of Academy CityOperation Handcuffs
Other ScienceExperiments and ProjectsChild ErrorMagic-Science TreatyAcademy City Military
See also: Dark Side of Academy City