Toaru Majutsu no Index II Episode 17

is the seventeenth episode of the second season of the Toaru Majutsu no Index anime adaption, and the forty-first episode overall. It was first aired on February 4, 2011.

Synopsis
Accelerator soon wakes up, realizing that he has rested for two hours, and he focuses on the device that keeps his ability usable. According to him, he can only use his ability for 15 minutes at a time, and turning it off drastically cripples his ability to understand sounds.

He decides to take a shower, thinking that there is no one home. However, as he opens the door to the shower room, he finds Aiho and Last Order naked, with Kikyou only draped with a bath towel. Aiho tells them that she forgot that they have Accelerator at home, and Last Order is shocked to find out that Accelerator does not react to the sight of scantily clad females.

Last Order later goes outside and talks to MISAKA 10032; meanwhile, Accelerator has just finished his shower and looks for Last Order, who is not around. It turns out that Last Order develops an urge to get 10032's goggles, which the clone refuses to. Last Order, however, manages to trick 10032 into following her and takes the goggles before running away.

With that, 10032 prepares her gun and declares that she will take her goggles back.

Adapted From
Toaru Majutsu no Index Light Novel Volume 12

Major events

 * Touma begins to fulfill his promise to Mikoto for the Penalty Game.
 * Accelerator is released from a certain hospital.
 * Accelerator meets Tsukuyomi Komoe.

Characters
By order of appearance:
 * Misaka Mikoto
 * Shirai Kuroko
 * Last Order
 * Accelerator
 * Yoshikawa Kikyou
 * Kamijou Touma
 * Tsuchimikado Motoharu
 * Aogami Pierce
 * Fukiyose Seiri
 * Himegami Aisa
 * Tsukuyomi Komoe
 * Heaven Canceler
 * Misaka clones
 * Misaka 10032
 * Misaka 13577
 * Misaka 10039
 * Misaka 19090
 * Yomikawa Aiho
 * Index
 * Tsuchimikado Maika
 * Uiharu Kazari
 * Hitotsui Hajime

New Characters

 * Misaka 13577
 * Misaka 10039
 * Misaka 19090

Abilities

 * Teleportation - Shirai Kuroko, Level 4
 * Electrical attack - Misaka Mikoto, Level 5
 * Imagine Breaker - Kamijou Touma, Level 0

New Abilities
No new abilities were introduced during this episode.

Locations

 * Academy City
 * Tokiwadai Middle School
 * A Certain High School
 * The hospital where Heaven Canceler works in
 * Seventh Mist
 * School District 7 Underground Shopping Center

New Locations

 * Yomikawa Residence

Trivia

 * The episode features a new opening theme, replacing the old one.
 * The episode marks the debut of A Certain High School and Tokiwadai Middle School's winter uniforms in the Toaru Majutsu no Index anime adaptation.
 * Yoshikawa Kikyou is driving Accelerator and Last Order to A Certain High School in a car (in the light novel, the three of them take a taxi).
 * The episode references Komoe's age and looks for the first time in the anime adaptation.
 * The episode marks the official debut of Maika's long sleeved maid uniform, which hitherto has been only been featured in PSI-Missing and Masterpiece.
 * This is the 2nd animated appearance of Mikoto's violin, the first being from episode 19 of the Toaru Kagaku no Railgun anime.
 * The effects that the Accelerator suffers from logging out of the Misaka network are different in the novel and in the anime: in the novel he can't understand what is being said to him, he isn't smart enough to recognize the numbers in a watch and he can't move his body sans his arms (and even then he has trouble coordinating them). In the anime he only has problem hearing words.

Referbacks

 * The Penalty game that Misaka Mikoto has reiterated several times in various episodes is finally featured in the episode.
 * In one scene, the Accelerator tries to prove if what has said previously about him being helpless without the Misaka network is true.

Cultural References

 * Somen noodles are featured during this episode.

Animation Trivia
No notable animation trivia is featured during this episode.

Unanswered Questions

 * Why was Misaka 19090 dieting?
 * What exactly is the truth behind Komoe's age and appearance?

Quotes

 * Kuroko: "Who is it? Ever since Daihaseisai, she's been acting like this.. Oneesama! Who is alluring you to dream up such sweet, yet scary schemes?" -Kuroko regarding Mikoto's very loud dreaming.
 * Aogami: "When you say things like that, girls always just pop into your life out of nowhere. That's right. You always seem to attract anyone, whether it be a super electronic robot girl or spirit maiden of a fountain." -Aogami Pierce regarding Touma's unusual fortune with women.
 * Misaka 19090: ""MI-MISAKA will acknowledge her sense of danger and run away..." says MISAKA as..." -said before running away from the other clones
 * Touma: "Oh... right. Such misfortune." -Touma's detached response to Mikoto finding him again.
 * Accelerator: "Why didn't you lock the door?" -to Aiho, Kikyou, and Last Order after walking in on them.