Toaru Majutsu no Index III Episode 20

A Reason to Protect (守る理由) is the twentieth episode of the third season of the Toaru Majutsu no Index anime series. It was broadcast on February 22nd 2019, and was directed by Nogami Yoshiyuki, was storyboarded by Watanabe Takashi, and the script written by Kingetsu Ryunosuke.

Synopsis
''Black wings cast a hue over the snowy plain. Blood-soaked fists clench tightly. The mightiest and the lowliest now once again clash.''

Adapted From

 * Toaru Majutsu no Index Light Novel Volume 20 Chapter 3 & Chapter 4

Characters
By order of appearance:
 * Misaka Worst
 * Accelerator
 * Lessar
 * Kamijou Touma
 * Vento of the Front
 * Elizalina
 * Hamazura Shiage
 * Digurv
 * Takitsubo Rikou
 * Carissa
 * Knight Leader
 * Itsuwa
 * Kanzaki Kaori
 * Agnese Sanctis
 * Elizard (referenced)
 * Lucia
 * Agata
 * Tsushima
 * Last Order
 * Index Librorum Prohibitorum (flashback)
 * Acqua of the Back
 * Shirai Kuroko
 * Misaka Mikoto
 * Mugino Shizuri
 * Fiamma of the Right
 * Sasha Kreutzev

New Characters

 * Maiden of Versailles

New Abilities

 * Durandal - Maiden of Versailles

Locations

 * Russia
 * Digurv's Village
 * Elizalina Alliance of Independent Nations
 * Strait of Dover
 * Academy City
 * School District 7
 * Tokiwadai Dormitory

Trivia

 * The voice actress of unnamed mother is Matsuda Risae.
 * The voice actress of unnamed daughter is Nukui Yuka.
 * The voice actor of unnamed driver is Yamane Masashi.
 * The voice actor of unnamed operator is Sugisaki Ryō.

Preview

 * "Black wings cast a hue over the snowy plain. Blood-soaked fists clench tightly. The mightiest and the lowliest now once again clash."