Kiyama Harumi

is scientist-researcher in Academy City. She has long wavy brown hair and is her striking feature is her dark eyebags. She always seen in a white long-sleeved shirt and a brown pencil skirt and always wears a long white coat which scientists usually wear inside the laboratory.

She acts too logically and lacks common sense, which is demonstrated when she stripped in front of others without thinking about it, a result of her years being a researcher. In Toaru Kagaku no Railgun, she is revealed to be the source of one of three urban legends popularized by different Web forums within Academy City. the urban legend of the "Stripping Woman". Also, later on, she is discovered as the creator of the Level Upper, which functions as a network to connect the minds of psychics who use it. This is also revealed to be the source of her powers, because as the administrator of the Level Upper, she is able to access and control the powers of all the psychics linked to the network.

Inside the Secret Projects: Toaru Kagaku no Railgun Anime
Harumi Kiyama started out as a researcher who works for an unnamed scientist whose purpose is to interpret the laws of berserk abilities. This was not told to Kiyama, and instead was asked to teach orphans who do not possess any psychic potential. She began to develop a relationship with the students and was shocked later on when she discovered that her students were test subjects of the experiement of that scientist.

The Level Upper Incident
After years of research, she was successful in creating Level Upper, a music file which aims to connect the minds of those who hear it using a network. Despite numerous attempts to use Tree Diagram to simulate test conditions, her requests were rejected. Because of this, she decided to transmit the file into the cyberspace, where the urban legend of the Level Upper grew and spread like wildfire across the Web and within the underground groups in Academy City.

Soon, with the involvement of Ruiko Saten into the Level Upper incident, Harumi's identity as the programmer of the Level Upper was revealed. She used the powers of the 10,000 minds affected by Level Upper and became a Multi-Skill when she prepared to fight back the Anti-Skills who responded to her kidnapping Uiharu Kazari. She faced Mikoto Misaka and was defeated, only to produce an AIM Burst, an artificial entity created from the AIM fields gathered by Harumi's network. This too was defeated by Mikoto, and after those events, she was arrested.