貞本義行
is a fictional character from the anime "Neon Genesis Evangelion", created by Gainax. She is the First Child and pilot of a giant mecha named Evangelion Unit 00. At the beginning of the series, Rei is an enigmatic figure whose unusual behavior astonishes her peers. As the series progresses, she becomes more involved with the people around her, particularly her classmate and fellow Eva pilot, Shinji Ikari. Rei appears in the franchise's animated feature films and related media, video games, the original net animation "", the "Rebuild of Evangelion" films, and the manga adaptation by Yoshiyuki Sadamoto.