Toaru Majutsu no Index Wiki

Sound Only—the ITEM liaison communicating with ITEM.

The Voice on the Phone (電話の声 Denwa no Koe?) is a term used by members of the Dark Side of Academy City to refer to the mysterious person on the phone who gives them orders.


Their primary function is to be a liaison between the faction they are ordering and the higher-ups who have power.[1] They also give information or put penalties on those who disobey. As with the case of the GROUP liaison, who hands out information to Accelerator after he asks,[2] as well as punish him in disobeying him by turning off the esper function of his choker-style electrode.[3] They also have command over Powered Suits that acts for them.[1]

As they are responsible for the organization, they will get the blame when an organization goes out of their control.[1] Moreover, their reputation is based on their organization worked, as shown by the ITEM liaison who forces ITEM to payback STUDY for humiliating them.[4] Finally, it is likely that they are the ones who recruits prospective members into the organization, as shown by the GROUP liaison.[5]

According to Etzali, it is apparently unclear to many people whether the person on the phone is a single person or multiple people. Multiple people could be commanding a single organization or each organization could have someone in charge of them. It could even seem like it was multiple people while it was just one person artificially altering their voice. Moreover, according to Etzali's own opinion, the Voice on the Phone may not be too large a group as they are too responsive.[1] It is later confirmed that there are more than one "persons on the phone," as exemplified by ITEM liaison talking to the BLOCK liaison on how he is no longer needed as their controller. Moreover, both the GROUP liaison and ITEM liaison are indication of this, with the latter clearly being a woman.

List of Characters

Notable Liaisons


  • BLOCK Liaison: The one who minds BLOCK. He apparently lost his power over them and has been asking the ITEM liaison for information regarding BLOCK's whereabouts. After GROUP defeated BLOCK, the ITEM liaison tells the BLOCK liaison that he is no longer needed as their controller. This news however makes him worried.[6]

Sound Only—the SCHOOL liaison communicating with SCHOOL.

  • SCHOOL Liaison: He or she is in contact with SCHOOL before the events of Daihasei Festival to ask Kakine Teitoku if he would like to participate in the demonstration of Level 5s due to a request from the Daihaseisai Committee. Needless to say, Kakine refuses, and later when the liaison becomes insistent goes on a rant about only people who have not seen the "darkness" can continue doing those. This leads to the liaison joking on how his power, specifically his white wings, would have appeal among kids, leading to Kakine doing a tantrum and wrecking their hideout.[7] During the events of October 9, the ITEM liaison wonders what the SCHOOL liaison, or controller in this case, will say after everything that has happened.[6] Since SCHOOL liaison does not appear at all and since SCHOOL seems to be everything on its own, it is likely that the SCHOOL liaison is dead or unable to contact SCHOOL like the BLOCK liaison.
  • MEMBER Liaison: She had been contracted with MEMBER before Kouzaku Mitori took her position.[8] The only thing known about her is that her hobby was cosplaying as a nurse. Her whereabouts is currently unknown.[9]
  • School Boy (学園太郎 Gakuen Tarou?): He was in contact with unknown dark side faction. He is older than Hamazura and has a sister who lives outside of Academy City. He fell from a building during Operation Handcuffs and gave Hamazura a charm to return to his sister before succumbing to his injuries. He also had a small sling bag with a few tools. His alias, written on his fake ID, is commonly used in example forms.[10]



v  e
Dark Side of Academy City
Factions and Organizations Board of Directors (Board Chairman: FormerCurrent)
Kihara FamilyHound DogGROUPSCHOOLITEMMEMBERBLOCKFreshmenScavengerFull CourseSpark SignalDisciplinary ActionL.S.S.STUDY
Experiments and Projects Level 6 Experiments (Level 6 Shift Project) • Radio Noise Project (Third Season) • Agitate Halation ProjectClone DollyExterior ProjectDark May ProjectProduceFive OverRensaAnatomy Mechatronics
Total Human Cyborg Replacement ProjectWhite AlligatorChemicaloid Project
Aleister's Plan Windowless BuildingImaginary Number DistrictMisaka NetworkUnderlineDRAGON
Key Events (Timeline) Sisters Arc0930 IncidentSkill-Out UprisingBattle Royale ArcGemstone MiningDRAGON ArcWorld War IIIFreshmen ArcBaggage City ArcAgitate Halation ArcMental Out ArcChristmas Eve ArcOperation Handcuffs Arc
Other Magic-Science TreatyMilitaryDestroyerVoice on the Phone
See also: Academy City