Kihara Nayuta

Kihara Nayuta (木原 那由他) is a character introduced in a Toaru Kagaku no Railgun mini-novel by ''[http://en.wikipedia.org/wiki/Baccano! Baccano!] and [http://en.wikipedia.org/wiki/Durarara!! Durarara!!]'' author, Narita Ryogho.

Background
Like Therestina Kihara Lifeline, she was asked to participate in experiments at a young age. Because of the aftermath of an experiment gone wrong, her body is now 70% mechanical, and is only alive because of Heaven Canceler's intervention.

Apparently she is part of a special branch of the Advanced Education Department that is affiliated with Judgment. She is also acquainted with Kiyama Harumi's students.

Appearance
She sports blonde hair which she ties in twin tails. She is often seen wearing her red backpack.

Personality
She is a little mischievous, manipulative and competitive; though not to the extent of her relatives, she is also interested with level 5's and wants to challenge them. She is also quite knowledgable with level 5s, knowing that both Sogiita Gunha and Misaka Mikoto are level 5 espers.

Toaru Jihanki no Sonzai Shoumei

 * Main article:Toaru Jihanki no Sonzai Shoumei

She is first seen looking for level 5's to challenge. However, as a member of Judgment, she is unable to attack anyone without just cause, she later finds Misaka Mikoto kicking a certain vending machine and uses this as an excuse to fight her. Using her abilities, she uses Mikoto's AIM field as so she can discharge electricity. This does not go unnoticed by Shirai Kuroko and Sogiita Gunha -, who were fighting nearby and decided to go and investigate.

When Gunha arrives, Nayuta rallies him to her cause and actually appeals to Kuroko's nature as a member of Judgment. With that, Gunha fights Mikoto; both of them however, show no hint of animosity and are happily testing each other's mettle. The fight is cut short when the Tokiwadai Dorm Supervisor arrives and takes Nayuta home.

Ability
She has the ability to manipulate other's AIM diffusion fields. She was able to make Mikoto discharge electricity that was enough to be noticed by Kuroko and Gunha.

Trivia

 * In the New Testament Volume 1 Afterword, the author acknowledges her existence in the Index canon, and as the reason why he has officially introduced cyborgs in the main storyline.