Corrector Yui: A Song For Yui

Book Description
Yui Kasuga was an ordinary girl at an ordinary school that is, until the day she was sucked into the Com-Net and asked to save cyberspace from the evil virus Grosser and his minions.
With the help of her friends, the Corrector Programs, Yui is sent to the Marine Adventures digital theme park to beta-test the program before the public is invited. Her trip to the beach is no picnic when Grosser himself turns up to contaminate the whole thing. It will take the song of a whale and the love of a girl to save this part of Com-Net.

From the Publisher
Kia Asamiya is the most widely read manga artist in America. A popular creator in his Japan, he's reached superstar status in America- speaking to standing-room-only crowds at anime and comic conventions. His work has been published by all the major American manga publishers (CPM, Dark Horse, TOKYOPOP, Viz), not to mention a full color series of Dark Angel from Image and an upcoming Batman project for DC. Best known for science fiction series like Silent Mobius and Nadesico, he makes his shoujo (girl's manga) debut with Corrector Yui, for which he designed the characters and established the story.