Season 1. TV series released in 2008, 24 episodes.
Watch SeriesComplex Watch Order
A Certain Magical Index / Scientific Railgun Watch Order - Complete Guide 2026
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The complete Toaru watch order for the Index and Railgun series. Learn how to navigate this complex franchise with both chronological and release order options.
159+Episodes
1Movies
2008-2020Years
How do I watch A Certain Magical Index / Scientific Railgun in order?
Watch A Certain Magical Index / Scientific Railgun (ใจใใ้ญ่กใฎ็ฆๆธ็ฎ้ฒ) in release order, starting with A Certain Magical Index (2008, 24 episodes) and finishing with A Certain Scientific Accelerator (2019). This guide covers 8 entries โ 6 essential to the main story and 2 optional side stories, spin-offs or recaps โ released across 2008 to 2020. By format that is 7 TV series and 1 film, 159 episodes in all, roughly 60 hours of viewing. The essential run is A Certain Magical Index, A Certain Scientific Railgun, A Certain Magical Index II and A Certain Scientific Railgun S, plus 2 more. It is a complex watch order: the franchise branches, and the sequence below is the one that keeps the story readable. The numbered list underneath is the short version; the timeline after it gives every entry its year, episode count, essential-or-optional status and the notes that explain why. If you are working outwards from here, our Durarara!! watch order covers the neighbouring franchises.
- A Certain Magical Index (24 episodes)
- A Certain Scientific Railgun (24 episodes)
- A Certain Magical Index II (24 episodes)
- A Certain Scientific Railgun S (24 episodes)
- A Certain Magical Index: The Movie (Optional)
- A Certain Magical Index III (26 episodes)
- A Certain Scientific Railgun T (25 episodes)
- A Certain Scientific Accelerator (12 episodes) (Optional)
Complete A Certain Magical Index / Scientific Railgun Watch Order
Follow this order for the best viewing experience. Entries marked as "Essential" are required for the main story.
1
2
Railgun Season 1. TV series released in 2009, 24 episodes.
Watch Series3
Season 2. TV series released in 2010, 24 episodes.
Watch Series4
Railgun Season 2. TV series released in 2013, 24 episodes.
Watch Series5
6
Season 3. TV series released in 2018, 26 episodes.
Watch Series7
Railgun Season 3. TV series released in 2020, 25 episodes.
Watch Series8
Accelerator spinoff. TV series released in 2019, 12 episodes.
Watch SeriesFrequently Asked Questions
Should I watch Index or Railgun first?
Release order (Index first) is recommended, but Railgun first works if you prefer a more action-focused start.
Are Index and Railgun connected?
Yes, they share the same universe, characters, and some events are shown from different perspectives.
Is Accelerator spinoff worth watching?
It's optional but recommended for Accelerator fans. Watch after Index II or Railgun S.
Which series is better, Index or Railgun?
Railgun is generally more popular for its animation and pacing, while Index has more world-building and magic system focus.
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