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Arc Almanac

21 Oct 2026Draft. Not yet checked against the books.

All series / A Certain Magical Index / Arc 43

Arc 43 of 66 in A Certain Magical Index

Arc 43: Ichihanaran Festival

In the story: Nov

Arc name chosen by Arc Almanac, because the books don’t name it.

I’ve watched through

Index I stops before this arc.

Railgun stops before this arc.

Index II stops before this arc.

The Miracle of Endymion stops before this arc.

Railgun S stops before this arc.

Index III stops before this arc.

Accelerator stops before this arc.

Railgun T stops before this arc.

Item (episodes 1–2; airing) stops before this arc.

What happens

Preparations for another Academy City festival coincide with a struggle over Fräulein Kreutune. Gremlin and its opponents pursue her for different reasons, while Touma and other residents become involved in the attempt to keep her out of their hands.

Where it sits

Ichihanaran Festival in A Certain Magical Index
FormatVolumesUnitsLanguage
Light novel — A Certain Magical Index: New TestamentVol 5, 6Volume 5, prologue – volume 6, epilogueJapanese
Light novel — A Certain Magical Index: New TestamentVol 5, 6Volume 5, prologue – volume 6, epilogueEnglish

Draft. Not yet checked against the books. Report a wrong mapping.