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A Certain Magical Index Watch Order
The Toaru universe spans nine released anime entries across three series (A Certain Magical Index, A Certain Scientific Railgun, Accelerator) plus one film, with the spinoff Toaru Anbu no ITEM arriving October 9, 2026. Watch in release order; it preserves every reveal.
A Certain Magical Index Watch Order: complete list
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Why this order?
Release order is the answer, and it is the one order that keeps every reveal intact: Index (2008), Railgun (2009), Index II (2010), the Endymion movie (2013), Railgun S (2013), Index III (2018), Accelerator (2019), Railgun T (2020). The magic side and the science side of Academy City run on the same clock, and the shows were written assuming you are watching them as they aired: Railgun S retells the Sisters arc from Index season one through Misaka's eyes, and it devastates in a way it simply cannot if you meet it first; Index II and III assume you know the Railgun cast and the movie.
Chronological order is a popular question and a bad first watch: multiple arcs run simultaneously across different series, so a strict timeline pass has you hopping between shows mid-arc. Save it for a rewatch. The one defensible alternative entry is Railgun first (Railgun, Railgun S, Railgun T) for viewers who prefer Misaka's science-side story; it stands up surprisingly well alone, but cross into Index before Railgun T to keep its cameos loaded.
A warning and a date. The warning: Index III compresses a huge stretch of novels and is famously rushed; it is still required viewing for the plot, just know the pacing is the adaptation's fault, not yours. The date: Toaru Anbu no ITEM premieres October 9, 2026, a dark-side spinoff about Mugino's ITEM crew with Railgun's director at J.C. Staff, and a fourth Railgun season is officially in the works behind it, still undated. Watch Railgun S and T before ITEM; that is where the crew earns its fandom.
Timeline 2008-2026
Every entry by release year: rows that share a year are a cluster, and the long droughts are called out on the rail.
- 2008 A Certain Magical Index
- 2009 A Certain Scientific Railgun
- 2010 II
- 2013 The Miracle of EndymionA Certain Scientific Railgun S
- 5-year gap
- 2018 III
- 2019 A Certain Scientific Accelerator
- 2020 A Certain Scientific Railgun T
- 6-year gap
- 2026 Toaru Anbu no ITEM
Where to play it today
- All three series and the movie stream on Crunchyroll in most regions
- Toaru Anbu no ITEM is expected to simulcast from October 9, 2026; check your local lineup closer to the date
Availability changes often and varies by region - links search each platform for A Certain Magical Index.
Frequently asked questions
How many Toaru anime are there?
Nine released entries: three seasons of A Certain Magical Index plus its Endymion movie, three seasons of A Certain Scientific Railgun, and A Certain Scientific Accelerator. The tenth, the spinoff Toaru Anbu no ITEM, premieres October 9, 2026, with a fourth Railgun season officially in the works.
What order should I watch A Certain Magical Index and Railgun in?
Release order: Index, Railgun, Index II, the Endymion movie, Railgun S, Index III, Accelerator, Railgun T. It is how the shows were written to be met, and it protects the Sisters arc reveal.
Can I start with Railgun instead of Index?
Yes, it is the one defensible alternative: Railgun, Railgun S and Railgun T follow Misaka's science-side story and stand up well alone. Cross into Index before Railgun T, though, or its cameos and stakes lose their weight.
Should I watch Toaru in chronological order?
Not on a first watch: several arcs run simultaneously across different series, so a strict timeline pass hops between shows mid-story. Chronological is a rewarding rewatch project after release order.
Do I need Railgun before Toaru Anbu no ITEM?
Strongly recommended: ITEM stars Mugino, Frenda, Takitsubo and Kinuhata, whose reputations are built across Railgun S and Railgun T. The spinoff covers the crew's earlier days on Academy City's dark side.
Is Index season 4 announced?
No. As of mid-2026 the announced projects are Toaru Anbu no ITEM (October 9, 2026) and a fourth Railgun season, which is officially in production without a date. Index IV remains rumor only.
Last verified · Sources: en.wikipedia.org, animenewsnetwork.com, Wikidata
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