Misaka 19090

Misaka 19090 (ミサカ19090号) was a Misaka clone that appears in Toaru Majutsu no Index. Originally supposed to be killed in the experiment against Accelerator as part of the Level 6 Shift, she was one of the few that remained in Academy City for readjustments.

Appearance
She looks the same as Mikoto, although for emphasis, her eyes are drawn in a different way. Like all Sisters, Misaka 19090 wears goggles and blue-striped panties.

Personality
She has displayed more personality than most clones as feeling embarrassed in a conversation about the comparison of the creation of the sisters to the conception of an embryo. Similar to most of the other clones, she seems to have feelings for Touma as shown when she displays envy towards the other clones. She was the first one to implement a plan to attracted him over the other clones.

In To Aru Kagaku no Railgun S, she is shown to now have emotions, courtesy of Nunotaba Shinobu.

Background
Not much is known about her, though as a clone she was most likely produced a few months prior to her introduction in the story.

Academy City Invasion Arc

 * Main article:Academy City Invasion Arc

The morning before Vento of the Front's attack on Academy City, Heaven Canceler is seen talking with the sisters regarding separate measurements for them, Misaka 10032, Misaka 13577, and Misaka 10039 agree that they only need to take one set of measurements since they share the same genes. However, they discover that Misaka 19090 has been dieting in secret, due to Heaven Canceler's suggestion that men, and possibly a certain high school boy, like slender women. Misaka 13577 reveals that Misaka 19090 also has obtained information that receiving a ring on the left ring finger makes one a "winner" inciting a jealous response from the three. Misaka 19090 attempts to get away, but the other clones jump on her. As one of the few remaining clones she was guarding the patients that were evacuated into Hospital buses and taken into the basement of Heaven Canceller's Hospital.

Sisters Arc

 * Main article:Sisters Arc

Misaka 19090 was the clone in the Testament machine as Nunotaba Shinobu tried inputting stronger emotions, like fear, into the Misaka Network.

Silent Party Arc
Misaka 19090 was present when the clones received Mikoto's request for assistance in saving Febrie and Janie. When Shinobu was trying to wake Janie but lacking enough computing power, Misaka 19090 contacted her, asking if they could help as they provided support from the outside. When Shinobu asked why, Misaka 19090 said it was thanks to her for giving her a heart and stated her serial number, which Shinobu recognized as the one from that time. Misaka 19090 added that the two girls share the same base program as them, making them their sisters as well, meaning they didn't need a reason to help them. After the destruction of the AIM bomb at the hand of Mikoto, they look up to its debris falling towards the Earth.

On September 2 Misaka 19090 is briefly seen enjoying milk tea together with Misaka 10032, Misaka 10039, and Misaka 13577, under the caring eye of Heaven Canceler.

Toaru Majutsu no Index Light Novel Volume SS2

 * Main article:Toaru Majutsu no Index Light Novel Volume SS2

On the fourth Friday of August Misaka 19090, Misaka 10032, Misaka 10039, and Misaka 13577 are seen looking though a magazine rack while in a waiting room at Heaven Canceller's Hospital. On the second Friday of October as one of the few remaining clones she was guarding the 7th Level 5 Sogiita Gunha when Ollerus infiltrated Academy City in order to put across a point to Academy City's Board of Directors and Aleister Crowley that if they misuse the gemstones due to their actions in the Gemstone Mining incident. She was beaten by Ollerus along with the other Sisters.

Toaru Majutsu no Index Movie: Miracle of Endymion
She and the others first appear in the hospital, eavesdropping in the conversation between Touma, Stiyl Magnus, and Tsuchimikado Motoharu, regarding the doom that will befall on earth with Endymion, to which they quickly relay to Last Order.

They later contact Mikoto's friends, who are suprised, regarding on how they will assist them in destroying the explosive bolts. Misaka 19090 holds a Toy Soldier rifle to cover Misaka 10032, who uses a large prototype Railgun to aid Mikoto in destroying the mobile weapons that would've overwhelmed her. As the Endymion begins to break away, she and the others quickly escape the underground base of the Endymion.

Abilities
Like all the Sisters, she is an Electromaster (電撃使い（エレクトロマスター）).
 * Electricity: Being a copy of Misaka Mikoto, she has the same abilities but only 1/20000 of the original, bringing her to Level 2 or 3, so her ability has a maximum output of only 50000 volts.
 * Radio Noise: A form of telepathy between the Sisters, it links her up to the "Misaka Network". This allows her to share memories and experiences with the other clones.

Equipment

 * Weapons & Gear: She wears a special set of goggles that enables her to see electron beams and magnetic field lines, because like all the Sisters she can't perceive without aid. She also uses a F2000R Toy Soldier and a Metal Eater MX, and is capable using any weapon the other Sisters have used.

Other abilities

 * Military training: Included in the information that was transferred with the Testament machines, like the other Sisters, she is proficient in combat methods such as the previously mentioned use of specific weapons, being able to trace targets and being able to shake of pursuers.