Toaru Majutsu no Index: Imaginary Fest

Toaru Majutsu no Index: Imaginary Fest (とある魔術の) is a mobile card game for iOS and Android devices, released in 2019. Toaru Majutsu no Index: Imaginary Fest officially started its service on July 4th 2019. Pre-Download of the game on Google Play/App Store was made available on July 3rd 2019.

Promotion
The new card game for iOS and Android devices was announced during the Index III Special Broadcast on January 5, 2019 with a small teaser movie. The game is an "academy superpower battle RPG" and will as a free-to-play title with item-based micro-transactions in 2019 in Japan. The game allows the player to relive scenes from the anime and build decks using the characters from the from anime, movies, the latest light novels, and from sidestories. Attesting to this, the teaser movie briefly showed Othinus, Leivinia Birdway, and Kuroyoru Umidori. The game is being developed and published by Square Enix. The theme song of the game, entitled "JUNCTION", will be performed by Kurosaki Maon.

Live Broadcast
The first live broadcast promoting the game was aired on March 15th 2019. The second live broadcast promoting the game was aired on June 11th, 2019. The third live broadcast promoting the game was aired on June 12th, 2019. It was aired with four s: Roboco-san, Shirakami Fubuki, Oozora Subaru, and Minato Aqua.

Official Character Poll
The Official Character Poll begins on April 25th. It ends when pre-registration of the game finished. The character who shines the most vote will be implemented at the start of the campaign. The poll continued on until July 1st. On July 3rd, the final result of Top 20 Characters was released. The winner was eventually Misaka Mikoto.

Official Swimsuit Poll
To celebrate the 2nd anniversary of the game, the official swimsuit poll held from June 28th to July 11th 2021. The gacha includes all the previous swimsuit units, with 3 units rate-up, being winners from the swimsuit voting results.

Official Character Popularity Poll
To celebrate the 3rd anniversary of the game, the official character popularity poll was held from May 1st to July 5th.

Plot
Imaginary Fest has multiple story modes and segments, with non-time-limited variants including the Main Story (メインストーリー), Side Stories (サイドストーリー) and Spot Stories (スポットストーリー). The Main Story is a near-direct adaptation of events depicted in the Toaru Majutsu no Index and Toaru Kagaku no Railgun anime, gradually updated over time. Side Stories are multi-part stories which come in two varieties; both Character Stories (キャラ別ストーリー) and Organization Stories (組織別ストーリー). Spot Stories are random short segments found in 'spots' across the game's map. Additionally, story elements are found within time-limited Events (イベント), with Scenarios (シナリオ) typically having more story.

Aside from parts of the story covered by the anime, some of the side stories and events include portions from the light novels and manga which have not been adapted to anime form. However, much of the game's story content is of an original and non-canonical nature.

Original Story
Imaginary Fest also has an Original Story (オリジナルストーリー) (alternatively Original Scenario (オリジナルシナリオ)) written by Kamachi Kazuma, which was announced in 2022 and began releasing chapters every two months from June 2023. Two original characters were made for the story; Thirteen Death and City Macabre.

Set in Academy City between the events of ' and ', it begins with Touma facing an intended anti-Magic God magician after Othinus's life during a cleanup event, only for the city to be faced with a greater upheaval in the form of the Return (リターン) - a sudden, inexplicable incident where many of the city's dead seemingly come back to life.

In-universe characters
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Science Side

 * Kamijou Touma
 * Misaka Mikoto
 * Accelerator
 * Last Order
 * Shirai Kuroko
 * Uiharu Kazari
 * Saten Ruiko
 * Sisters
 * Aogami Pierce
 * Tsukuyomi Komoe
 * Yomikawa Aiho
 * Yoshikawa Kikyou
 * Tokiwadai Dorm Supervisor
 * Heaven Canceller
 * Keitz Nokleben
 * Therestina Kihara Lifeline
 * Kazakiri Hyouka
 * Musujime Awaki
 * Tsuchimikado Maika
 * Fukiyose Seiri
 * Aleister Crowley
 * Iizumi Rita
 * Yakumaru Itsuki
 * Sakuragi Naruha
 * Seike Taroumaru
 * Mugino Shizuri
 * Frenda Seivelun
 * Kinuhata Saiai
 * Takitsubo Rikou
 * Hamazura Shiage
 * Kakine Teitoku
 * Shokuhou Misaki
 * Hokaze Junko
 * Awatsuki Maaya
 * Kongou Mitsuko
 * Wannai Kinuho
 * Awatsuki Maaya
 * Konori Mii
 * Makigami Komaki
 * Hitokawa Hasami
 * Meigo Arisa
 * Shutaura Sequenzia
 * Dolly
 * Kihara Gensei
 * Kouzaku Mitori
 * Sogiita Gunha
 * Kuriba Ryouko
 * Doppelganger
 * Baba Yoshio
 * Kihara Amata
 * Girl in the Dress
 * Yobou Banka
 * Yumiya Rakko
 * Misaka Worst
 * Juufuku Miho
 * Febrie
 * Fremea Seivelun
 * Kuroyoru Umidori
 * Hattori Hanzou
 * Mitsuari Ayu
 * Kumokawa Seria
 * Kihara Yuiitsu
 * Fusou Ayame
 * Kiyama Harumi
 * Kurozuma Wataru
 * Haruue Erii
 * Nunotaba Shinobu
 * Beetle 05
 * Kihara Noukan
 * Patricia Birdway
 * Kamijou Touma (Emanation)
 * Suzushina Yuriko
 * Kumokawa Maria
 * City Macabre
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Magic Side

 * Index Librorum Prohibitorum
 * Stiyl Magnus
 * Kanzaki Kaori
 * Himegami Aisa
 * Aureolus Izzard
 * Sasha Kreutzev
 * Yamisaka Ouma
 * Sherry Cromwell
 * Tsuchimikado Motoharu
 * Etzali
 * Xochitl
 * Esther Rosenthal
 * Agnese Sanctis
 * Lucia
 * Angelene
 * Orsola Aquinas
 * Lidvia Lorenzetti
 * Biagio Busoni
 * Itsuwa
 * Tatemiya Saiji
 * Tsushima
 * Oriana Thomson
 * Laura Stuart
 * Ladylee Tangleroad
 * Vento of the Front
 * Terra of the Left
 * Acqua of the Back
 * Fiamma of the Right
 * Elizard
 * Riméa
 * Carissa
 * Villian
 * Knight Leader
 * Lessar
 * Floris
 * Bayloupe
 * Lancis
 * Aiwass
 * Archangel Gabriel
 * Leivinia Birdway
 * Ollerus
 * Othinus
 * Thor
 * Marian Slingeneyer
 * Kihara Kagun
 * High Priest
 * Nephthys
 * Niang-Niang
 * Salome
 * Karasuma Fran
 * Mina Mathers
 * Dion Fortune
 * Thirteen Death
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