Kasuga, Yui

Yui, a high-school student with questionable academic abilities, has demonstrated skill and growth throughout the series by adopting the secret online persona of "Corrector Yui". Although she is completely incompetent when physically using computers, Yui is a tremendously powerful fighter in the virtual world, capable of quickly repairing damage and easily defeating Grosser's strongest henchmen.
Her optimistic outlook and her ability to cheer others up even in the worst moments (though she can sometimes be overly perky) are among her greatest strengths, making her easily likable to her peers and fellow Corrector programs. She also possesses an empathetic personality that helps her understand the nature of the A.I. programs she encounters on the net. Additionally, she has a good singing voice. She aspires to become a manga author and/or an anime dubber.