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Misaka 1 (ミサカ一号 Misaka Ichi-gō?) was the first Sister, a clone of Misaka Mikoto, produced in the Level 6 Shift Project that was killed by Accelerator. Otherwise similar to all other clones, she is notable for having two slightly different death scenes in the Toaru Kagaku no Railgun manga.


She looks the same as Mikoto, although for emphasis, her eyes are drawn in a different way. Like all Sisters, Misaka 1 wears Tokiwadai Middle School's uniform, goggles, and blue-striped panties.


Like all the Sisters, she had little emotion and never considered herself to be a living being. Being the first clone, she is apparently completely loyal to the experiment, eager to take part in the experiment and having very little concern for her own life. Due to the fact that she has yet to take part in a battle with Accelerator, she is completely ignorant of his powers.[1]


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, and died during the course of the first battle with Accelerator.


Toaru Kagaku no Railgun

Sisters Arc

Main article: Sisters Arc

Left: The magazine version of the 37th Chapter of the Toaru Kagaku no Railgun manga, Misaka 1's appearance in the fourth panel would be the final one in the chapter. Right: The tankobon version of the same chapter, Misaka 1 falls after her shot is redirected by Accelerator.

Misaka 1 appears in a flashback by Accelerator during his fight with Kamijou Touma. Being the first clone, she is obviously killed in the battle, however, her death differs in the magazine version and the tankobon version of the manga.

In the original magazine version, Misaka 1, apparently without a weapon in sight, is already terribly beaten up by Accelerator, whom complains to the researchers present about her weakness. After they convince Accelerator that she is merely a doll that can be produced with a touch of a button, Accelerator eyes widened, and is presumed that she is killed by him.

In the tankobon version, the meeting between Accelerator and Misaka 1 is rather casual, with the latter introducing herself to him. Misaka 1 has a pistol, and as the experiment begins, Misaka 1 determines that the first one to attack is the winner, ignorant of Accelerator's powers. The bullet that hit Accelerator deflects off him instead of being redirected, and after a couple more shots, Accelerator has had enough, approaches Misaka 1 and launches her using her powers. He is surprised that she is so weak, and asks the researchers what's going on, to which they say to him that the clones are connected and that they will become more experienced in succeeding battles. Accelerator tries to leave, believing that the experiment is over, however, the scientist states that he needs to kill Misaka 1 in order for the experiment to be concluded. Instead of dying like in the magazine release, Misaka 1's death is due to her own hands. She tries to shoot Accelerator, acknowledging the orders of the researchers wanting to conclude the experiment with the pistol, but the shot is directed back to her. She later bleeds to death, commenting on her agonizing death.[1]


Like all the Sisters, her ability is known as Radio Noise (欠陥電気レディオノイズ Kekkan Denki (Redio Noizu)?, lit. "Flawed Electricity"), a subset of the Electromaster (電撃使いエレクトロマスター Dengeki Tsukai (Erekutoro Masutā)?, lit. "Electricity User") ability. As an esper around level 2-3, the ability allows her to generate 1/20000 of Misaka Mikoto's power, the Railgun, so her ability has a maximum output of only 50000 volts. However, unique to this ability is the Sisters having a form of telepathy that is formed from the similar brainwave patterns, forming a brainwave network. This collection of Sisters connected linked to each other is called the Misaka Network, this also allows her to share memories and experiences with the other clones. However, because of the fact that she is the first one, she is completely unprepared against Accelerator.

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 aforementioned use of specific weapons, can track targets, and shake off pursuers.


  • Weapons & Gear: She wears a special set of goggles that enables her to see electron beams and magnetic field lines, which like all the Sisters she cannot perceive without aid. She uses a pistol, and is able to accurately hit Accelerator. She most likely can use both a F2000R Toy Soldier and a Metal Eater MX.


  • (In Railgun manga Chapter 37) "Dark... Deep... Like sinking to the bottom of the ocean... So this is death..."



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Notable Clones
Misaka1 profile.jpg Misaka8912 animeProfile.jpg Misaka9982 animeProfile.jpg Misaka10031 animeProfile.jpg Misaka 10032 in Winter Clothing (Anime).png
Misaka 1 Misaka 8912 Misaka 9982 Misaka 10031 Misaka 10032
Misaka10039 animeProfile.jpg Misaka 10046 (Anime).png Misaka 10777 (Anime).jpg Misaka13577 animeProfile.jpg Misaka19090 animeProfile.jpg
Misaka 10039 Misaka 10046 Misaka 10777 Misaka 13577 Misaka 19090
Other Clones
Special Clones
Dolly Anime (New Body).png Template Placeholder other.png Last Order (Anime).png Misaka Worst (Anime).png
Dolly Full Tuning Last Order Misaka Worst
Will of the Whole Misaka Network
Non-canon Clones