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A Certain Magical Index

2008 ★ 7.5 3 seasons 74 eps TV-MA

Animation

Sci-Fi & Fantasy

Comedy

Mystery

Touma Kamijou is a student living in Academy City, a highly advanced place in terms of technology. Despite being gauged as a level zero esper (no powers), he possesses on his right hand the Imagine Breaker, an ability that negates any power whatsoever. Touma finds a young girl named Index who is trying to run away from Necessarius, a powerful magic organization that she is member of. Blessed with the skill of memorizing any sort of information, she holds 103,000 forbidden magical books within her head. As science and magic cross paths, Touma must face several dangers amid espers and magicians who appear in the exciting scientific town.

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Where to watch A Certain Magical Index

A Certain Magical Index is available to stream on Nabby via 6 verified sources, aggregated from publicly available embed providers. The animation has 3 seasons and 74 total episodes, rated 7.5/10 by 200 viewers.

Last verified: October 13, 2026 · Source: TMDB

Episodes 74 total across 3 seasons

24 episodes20083 watched

Academy City✓

Oct 5, 2008★ 7.4

Kamijo meets Index, who is on the run from a magic society that wants the library of forbidden knowledge stored in her memory. Later, Kamijo is shocked to find Index at his house – bleeding and accompanied by a strange man.

Innocentius (The Witch Hunter King)✓

Oct 12, 2008★ 7.4

Kamijo tangles with Stiyl, upset with the magician’s rough behavior toward Index. When quick thinking allows Kamijo and Index to escape, they head to the one person that might be able to help them.

Necessarius (The Church of Necessary Evil)✓

Oct 19, 2008★ 7.4

While Komoe helps Index in healing her wounds using magic, Toma meets Stiyl's partner, Kaori Kanzaki and learns from her why they are hunting Index and the organization, Necessarius, The Church of Necessary Evil.

Perfect Memory Ability✓

Oct 26, 2008★ 7.2

Touma learns the truth about Index's perfect memorization and her loss of memories.

Limit (12 o'clock)✓

Nov 2, 2008★ 7.4

Touma tries desperately to save Index's memories before it is too late.

Imagine Breaker✓

Nov 9, 2008★ 7.4

Following the events of last episode and the activation of Index's defense mechanism Touma struggles to hide his amnesia from Index.

The Science Cult (Misawa Cram School)✓

Nov 16, 2008★ 7.0

Stiyl and Touma join forces to investigate the mysterious Misawa Cram School.

Ars Magna (Golden Transmutation)✓

Nov 23, 2008★ 7.2

Touma encounters Ars Magna the leader of Misawa Cram School and a man with his own connection to Index.

Deep Blood (Vampire Killer)✓

Nov 30, 2008★ 7.5

Touma confronts Ars Magna in a dangerous battle to rescue both Index and Deep Blood.

Mikoto Misaka (Sissy)✓

Dec 7, 2008★ 7.1

Touma spends some time with Misaka Mikoto and makes a strange discovery.

Sisters (Sisters)✓

Dec 14, 2008★ 7.2

Touma goes in search of Misaka to investigate the clone experiment.

Level 6 (Absolute Ability)✓

Dec 21, 2008★ 7.3

Touma discovers the reason behind the experiment and appears to grow closer to Misaka.

Accelerator (One Way)✓

Dec 28, 2008★ 7.0

Misaka and Touma hatch a plan to defeat Accelerator and end the experiment.

Weakest vs. Strongest (Strongest vs. Weakest)✓

Jan 8, 2009★ 5.8

Touma faces off against Accelerator for the sake of Misaka and her 'sisters'.

Angel Fall (Angel Fall)✓

Jan 15, 2009★ 5.3

Touma and Index head to the beach to avoid the fallout from Touma's fight with Accelerator. They also plan to meet Touma's Family but when they arrive they aren't quite what Touma was expecting.

Toya Kamijo (Father)✓

Jan 22, 2009★ 5.6

The Angel Fall spell remains in effect with only Toma, Kanzaki, Misha and Tsuchimikado relatively unaffected. However, the person responsible for casting the spell remains a mystery. Misha quickly becomes the prime suspect after a strange conversation with Toma. But when Toma follows up on his hunch he discovers that the real culprit is not Misha but his own father. As such he hurries to reach his father before Misha and the other mages can confront him.

The Power of God (Archangel)✓

Jan 29, 2009★ 6.9

After figuring out the truth of Misha’s real identity, Kanzaki sends Kamijo and Toya to destroy the ritual spot. When Tsuchimikado suggests that Toya must die for the spell to end, a violent – and seemingly fatal – encounter ensues.

Replica (Impostor)✓

Feb 5, 2009★ 7.1

In order to shake off the unwanted attention she’s getting from Unabara, Misaka asks Kamijo to pretend to be her boyfriend. Things get complicated when the faux-couple discovers that Unabara is hiding a magical secret.

Last Order (The End)✓

Feb 12, 2009★ 5.6

Accelerator meets the last of Misaka’s clones – Last Order – who explains the special role she played in the Sister experiment. Later, Accelerator learns what steps he’ll have to take to keep Last Order safe.

Virus Code (Final Signal)✓

Feb 19, 2009★ 7.0

After Accelerator frees Last Order of the virus infecting her brain, he’s attacked by gun-wielding Amai. Just as all appears lost for Accelerator, Yoshikawa arrives to help – but Amai isn’t going down without a fight.

Counter Stop (Identity Unknown)✓

Feb 26, 2009★ 7.1

School’s back in session and that means new transfer students – one of which is Index! In class, Komoe offers more insight into the realities of life as an esper – and a powerful new magical presence is detected in Academy City.

Golem (Stone Figure)✓

Mar 5, 2009★ 7.1

Panic ensues in Academy City upon the arrival of the sorcerer Sherry Cromwell, who makes no secret of her plans to destroy Kazakiri! Kamijo steps up to ruin Sherry’s plot – but the situation is more complex than he knows.

Friends (Hyoka Kazakiri)✓

Mar 12, 2009★ 7.3

Kamijo chases Sherry away only to discover the sorcerer now has designs on Index! Meanwhile, with her secret revealed, Kazakiri takes advantage of her new situation and sets out to fight Ellis.

Imaginary Number School District - Five-Element Agency✓

Mar 19, 2009★ 5.9

Kamijo, Index and Kazakiri join forces to take on Ellis. When the battle ends, and with the support of Index, Kazakiri returns to the place of her origin. Later, Tsuchimikado ponders Aleister’s role in recent events.

Frequently asked

How many seasons does A Certain Magical Index have?

A Certain Magical Index has 3 seasons with 74 episodes in total.

Is A Certain Magical Index still on the air?

A Certain Magical Index has ended and is no longer in production.

What network airs A Certain Magical Index?

A Certain Magical Index airs on MBS.

When did A Certain Magical Index first air?

A Certain Magical Index first aired on October 5, 2008.

Cast

Atsushi Abe

Atsushi Abe

Touma Kamijou (voice)

Yuka Iguchi

Yuka Iguchi

Index (voice)

Rina Sato

Rina Sato

Mikoto Misaka (voice)

Nobuhiko Okamoto

Nobuhiko Okamoto

Accelerator (voice)

Satoshi Hino

Satoshi Hino

Shiage Hamazura (voice)

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