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The second halves of the first two seasons of _A Certain Scientific Railgun_
seem to contain content not seen in the manga. Are they considered filler and
thus not canonical to the overall plot of the Raildex Universe? In particular,
I am asking whether the [Silent Party
Arc](https://toarumajutsunoindex.fandom.com/wiki/Silent_Party_Arc) (Season 2:
episodes 17-24) and the [Poltergeist
Arc](https://toarumajutsunoindex.fandom.com/wiki/Poltergeist_Arc) (Season 1
17-24 + Season 2 episode 1) are canonical.


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2023-01-20T22:26:50.277
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2023-01-21T17:32:17.530
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question
a-certain-magical-index a-certain-scientific-railgun
Are the second halves of the first two seasons of A Certain Scientific Railgun canonical?


First, let me say I am personally not inclined to offhandedly label anime only
content as non-canonical. That being said, I do believe these two arcs
introduce some problematic elements.

One problem I see is the theme of the power of friendship in these arcs, which
is much more prevalent than in arcs from the manga. Namely, Mikoto Misaka
teams up with all her friends to try and solve the problem. This is
problematic because this "lesson" Misaka seemingly learns here that she should
trust her friends... she doesn't actually learn it. Elsewhere, she maintains
her prerogative to go solo and keep her friends out of it. This is
particularly true after the Poltergeist Arc, since it is followed immediately
by the Sisters Arc. But even after the Sister Arc, rather than with her
friends, Misaka seems more willing to team up with

> Shokuhou, a fellow level 5 esper.

particularly when the dark side of Academy City is involved, to keep her real
friends out of danger. Also, as a side note, the ending of the Silent Tea
Party Arc might be more than a little surprising to anyone not already aware
of this relationship. And Misaka seems a bit resistant to and also remorseful
about involving Kongou in the next arc, saying in volume 8:

> Whatever you do, don't get too involved. I don't think you'd be in any
> **real** danger, but I also don't fully know what she's capable of.

and later:

> Be careful, Kongou-san... This isn't your problem, so **please** don't get
> hurt.

## Evidence For Being Canonical

Moving on, we can get into actual evidence for and against. As far as the
[Poltergeist Arc](https://toarumajutsunoindex.fandom.com/wiki/Poltergeist_Arc)
goes, Haruue Erii does make cameos in the manga, thus proving her existence
and relationship to the main characters. Uiharu is talking to her on the phone
in Chapter 31. She says:

> Haruue-san said she'd meet us after she visits the hospital.

Erii again appears in Chapter 32, in a picture on Misaka's phone. The picture
seems to be from an event in the anime, according to the trivia section on
[Erii's wiki page](https://toarumajutsunoindex.fandom.com/wiki/Haruue_Erii).

## Evidence Against (Timeline Inconsistencies)

A lot of the argument against the [Silent Party
Arc](https://toarumajutsunoindex.fandom.com/wiki/Silent_Party_Arc) being non-
canonical stems from Kongou and her two friends being involved in the arc.
Kongou is actually introduced in the arc after the Sisters Arc, and she has
just transferred in to Tokiwadai. However, from what I recall, this
inconsistency seems to be a problem with the entire first two seasons of the
anime. I'd have to verify what differences there are in the third season and
the manga events.

I'm also seeing
[claims](https://www.reddit.com/r/toarumajutsunoindex/comments/if50tu/is_there_any_proof_that_silent_party_is_canonnot/)
that someone on the Railgun anime team disavowed the Silent Party Arc in a
tweet as a "mistake", though I have yet to track this tweet down.

## Conclusion

Anyway, draw your own conclusions about whether these arcs are canon from the
information available. I'm not going to say it is or isn't canonical, because
that's subjective.

## Addendum

Note also that the two episode [Big Spider
Arc](https://toarumajutsunoindex.fandom.com/wiki/Big_Spider_Arc) is also anime
exclusive, though it's wiki page states it is considered canon (without any
explanation). I'm not going to go into it, but it's obviously relevant here.


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2023-05-05T15:31:27.113
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