Mikoto Misaka is a fictional character from the Toaru Majutsu no Index and Toaru Kagaku no Railgun series. She is known as the "Railgun" due to her ability to manipulate electricity and use it to launch metal objects at high speeds. Mikoto is a Level 5 esper, making her one of the most powerful individuals in the city of Academy City. In the series, Mikoto is a high school student who often finds herself involved in various conflicts and adventures. She is characterized by her strong-willed personality, determination, and a sense of justice. Despite her tough exterior, she has a caring side, especially towards her friends and allies.