How to watch A Certain Magical Index in order

Main story (release order)

1. 1
   A Certain Magical Index (Toaru Majutsu no Index)TV series · 2008 · 24 ep.
2. 2
   A Certain Magical Index II (Toaru Majutsu no Index II)TV series · 2010 · 24 ep.
3. 3
   A Certain Magical Index III (Toaru Majutsu no Index III)TV series · 2018 · 26 ep.

Specials, films & side stories (optional)

These aren't needed to follow the main plot. Watch them after the series they come from (by date).

• A Certain Magical Index: Specials (Toaru Majutsu no Index-tan)Special · 2009 · 2 ep. · Spin-off
• A Certain Scientific Railgun (Toaru Kagaku no Railgun)TV series · 2009 · 24 ep. · Side story
• A Certain Scientific Railgun Specials (Toaru Kagaku no Railgun: Motto Marutto Railgun)Special · 2010 · 2 ep.
• A Certain Scientific Railgun: Episode 13' - Being a Photo Shoot Model Under the Hot Sun Isn't Easy, Is It? (Toaru Kagaku no Railgun: Entenka no Satsuei Model mo Raku Ja Arimasen wa ne.)OVA · 2010 · 1 ep.
• Toaru Kagaku no Railgun: Misaka-san wa Ima Chuumoku no Mato desukaraOVA · 2010 · 1 ep.
• A Certain Magical Index II: Specials (Toaru Majutsu no Index-tan II)Special · 2011 · 2 ep. · Spin-off
• A Certain Magical Index the Movie: The Miracle of Endymion (Toaru Majutsu no Index Movie: Endymion no Kiseki)Movie · 2013 · Side story
• A Certain Scientific Railgun S (Toaru Kagaku no Railgun S)TV series · 2013 · 24 ep. · Side story
• Toaru Kagaku no Railgun S: Motto Marutto RailgunSpecial · 2013 · 2 ep.
• Toaru Majutsu no Index Movie: Endymion no Kiseki SpecialSpecial · 2013 · 1 ep.
• A Certain Scientific Railgun S: All the Important Things I Learned in a Bathhouse (Toaru Kagaku no Railgun S: Daiji na Koto wa Zenbu Sentou ni Osowatta)OVA · 2014 · 1 ep.
• A Certain Magical Index III: Specials (Toaru Majutsu no Index-tan III)Special · 2018 · 2 ep. · Spin-off
• A Certain Scientific Railgun T (Toaru Kagaku no Railgun T)TV series · 2020 · 25 ep.
• A Certain Scientific Railgun T Specials (Toaru Kagaku no Railgun T: Motto Marutto Railgun)Special · 2020 · 2 ep.

Order and relationships from Kitsu's media-relationship data (sequel / prequel / side story), dates and episode counts as listed there; checked 2026-11-15. Release order is the safest first-watch order.