Ruiko Saten

Age: 12–13

Height: 160 cm

Classification: Esper

School: Sakugawa Middle School

Level: 0

A Level 0, classmate and friend of Uiharu. She wears a flower on the left side of her hair. She is cheerful and friendly, and is a little shameless as she sometimes flips Uiharu's skirt in public.

She first appears in the Toaru Kagaku no Railgun manga and its anime series and makes a cameo appearance in the Toaru Majutsu no Index light novel series and the opening of the anime.

(Source: Wikipedia)