Index (禁書目録 (インデックス) Indekkusu?) is the twenty-fourth episode of the third season of the Toaru Majutsu no Index anime series. It was broadcast on March 22nd 2019, and was directed by Nogami Yoshiyuki and Suzuki Kentarou, was storyboarded by Suzuki Kentarou, and the script written by Yoshino Hiroyuki.


Right arm power and List of Forbidden Books knowledge -- after Fiamma masters both, his attacks won't allow me to strike back. Is the power to save the world what he is really after?

Adapted FromEdit

Major EventsEdit

  • Hamazura fights Mugino for the third time and doesn't have the upper hand this time. Realizing that their actions were controlled by the higher-ups of Academy City, Hamazura decides to reconcile himself with Mugino and wants to reform ITEM .
  • Fiamma completes his right arm by absorbing Touma's Imagine Breaker and was about to complete the Project Bethlehem, but he is stopped in its tracks by the Invisible thing inside Touma, who later recovered his Imagine Breaker.


By order of appearance:


New AbilitiesEdit



  • Fiamma is the second person who has managed to completely sever Touma's Imagine Breaker from his body.


Cultural ReferencesEdit

Differences in AdaptationEdit

CleanerBot small Index: "What is this? Agathions?"

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  • In the novel, the number of Mugino's Meltdowner lasers firing is stated to be 20,000 at once.
  • In the novel, it's explained that Fiamma was so shocked because the invisible thing negated instantly his light attack which has the power to blow away a planet, while Imagine Breaker couldn't completely negate his previous attacks which were much weaker[1].
  • In the novel, the power which crushed the invisible thing, which is said to be more powerful than Fiamma's complete third arm, looks like a large mouth[1].

Animation TriviaEdit


# Title Time Scene & Notes
1 Kuukyo 00:00 Accelerator speaks with Fuse Kazakiri, No OP[2]
Power of Anger Mugino uses Body Crystal[3]
Unverified Track Hamazura vs. Mugino
Unverified Track Hamazura see Mugino on the ground
Kyuuketsu Koroshi Hamazura speaks with Mugino[2]
Attouteki Gunji-Ryoku ITEM reforms, Stiyl vs. John Pen Mode Index, Sasha and Lessar[4]
Unverified Track Eyecatch
Kyuushuu Touma vs. Fiamma[5]
Kyoudai na Chikara Fiamma reveals his plan[5]
Hit the Tech!! Fiamma achieves The One Above God[3]
Extraordinary Invisible Thing[3]
I am a savage Touma explains his thought about Fiamma's plan[4]
Ketsu Mikoto and Misaka 10777, No ED[6]
ROAR (Preview Version) Preview

Unanswered QuestionsEdit

  • What is this "Invisible thing" ?



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