A Certain Magical Index
A Certain Magical Index

A Certain Magical Index (2008 – 2019)

2008 • 3 seasons • Animation, Sci-Fi & Fantasy • TV-14
6.7/10 2,678
76% 178
—
—
On August 9, 2026
#3703 ▲ 108
3703rd by attention TV show online
ATTENTION
22.2 Attention Score
Attention Score

Our daily 0–100 attention score based on public activity and popularity signals across the web.

How it works →
Streaming on See all
Amazon Video Crunchyroll Apple TV Store Crunchyroll Amazon Channel
United States
Source JustWatch
← Season
photo from the episode

Episode 20 — Virus Code (Final Signal)

Season 1 • A Certain Magical Index
Released: 2009-02-19 • Animation/Sci-Fi & Fantasy/Comedy/Mystery
68%
User score
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.

Where to Stream Episode 20

Season 1 · Episode 20 · Streaming in USA
by JustWatch
Crunchyroll
Subscription
Crunchyroll Amazon Channel
Subscription

Episodes

Information

Episode air date19.02.2009
Episode runtime25 min
Episode rating6.80
GenresAnimation / Sci-Fi & Fantasy / Comedy / Mystery
TMDB series rating7.6
IMDb series rating6.7
Series statusEnded
Age rating14+
CountryJP

Trailer

Additional videos

Index III Opening 2 | ROAR - Maon Kurosaki
Index III Opening 2 | ROAR - Maon Kurosaki
▶
Index III Opening 1 | Gravitation - Maon Kurosaki
Index III Opening 1 | Gravitation - Maon Kurosaki
▶
Season 2 Part 1 - Official Trailer
Season 2 Part 1 - Official Trailer
▶
A Certain Magical Index - Part 1 & Part 2 - Trailer - Available on DVD 12.18.12
A Certain Magical Index - Part 1 & Part 2 - Trailer - Available on DVD 12.18.12
▶

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)

Similar shows

Tokyo Ghoul
Samurai Champloo
Fate/stay night [Unlimited Blade Works]
Sailor Moon Crystal
Monthly Girls' Nozaki-kun
Saint Seiya: The Lost Canvas
Ghost in the Shell: Stand Alone Complex
Ouran High School Host Club
Stigma of the Wind
Ergo Proxy
Seton Academy: Join the Pack!
Death Parade
Believe
Bitten
Ben-To
Witches of East End
Teenage Mutant Ninja Turtles
Amazing Stories
My So-Called Life
Serial Experiments Lain
The 13 Ghosts of Scooby-Doo
Revolutionary Girl Utena
Nagi-Asu: A Lull in the Sea
Aharen Is Indecipherable

Recommended shows

Bakuman
Aesthetica of a Rogue Hero
Seraph of the End
A Certain Scientific Railgun
AHO-GIRL
Ascendance of a Bookworm
The Legend of the Legendary Heroes
My Ribdiculous Reincarnation
Promise of Wizard
Maid Sama!
I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too
Hakkenden: Eight Dogs of the East
Matoi the Sacred Slayer
Fate/Extra Last Encore
Farming Life in Another World
Star Detective Precure!
Yamada's First Time: B Gata H Kei
BLOOD-C
← Previous episode Next episode →