A Computer Software named IR recruits Yui as a Corrector. He takes her inside a computer, where she sees her father's newest creation, ""Galaxy Land"". While at Galaxy Land, IR downloads ""The Element Suit"" which is found somewhere in Galaxy Land, Yui transforms. Grosser sends on of his cohorts out, War Wolf. Can Yui defeat Grosser? Why not pick up a copy of Corrector Yui: Volume 1?
Yui finds out that IR wasn't a dream after all! She trys sending a message to her friends, but with the help of IR, she sends it by Comnet Mail. At school, Yui is asked a question she does not know, ""The Mouth Is The Gateway To Disaster"". Freaking out, Yui is forced to go to the Virtual Comnet World, with the command ""Corrector Yui Enter!"" While in the virutal world, Yui discovers that one of Grosser's Cohorts, Virus has infected the mailmen, and the messages that everyone sends is turned into something nasty. When Yui returns to the real world, she finally has the answer to the question, which she types in her computer. The answer is correct. After that, Yui and her friends go to Haruna's Birthday Party.
Yui and IR suspect foul play when Chef Kirch, a family friend who can never get his recipes quite right. In the beginning if he mentions he has a new dish everyone wants to run for cover! Yui unable to turn down a friend tries it. Its actually good! He found a recipe on Comnet and a special seasoning has him with more customers than he can handle. Soon it gets out of hand and he has to face customers who've turned into ravenous zombies.
A school-craze for fortune-telling develops into a destructive obsession. Who knew love advice could be so dangerous?
A virtual-reality field trip into a nature park turns a day picking up litter into an all-out search for missing people. Can Corrector Yui save the day... and finish her homework?
Yui and the other try to convince Eco that not all humans are bad. But at the same time Yui must also battle War Wolf. Who plans to burn the place to the ground! It turns out that Eco was the one who abducted all the people who littered in the nature park.
Yui and her friends visit a virtual theme park. Here they can assume the roles of ancient Edo historical figures. Yui and the others must prevent Freeze, Jaggy and Virus from stealing a scroll that would allow them to become a ""Shogun"" and taking over!
Yui finds a hurt blue bird and then goes to investigate Medical Net's malfunction. Freeze has a not to pleasant encounter Rescue another Corrector program. Later Yui has a run-in with Freeze who destroys her com con. Then a strange man appears can he fix her con com? And will Freeze survive her next encounter with Rescue?
When Yui's dad asks her and some friends to test his company's latest VR, ""Marine Adventure Land,"" Yui is thrilled. But not all of Yui's friends are free, so double-dates (Yui and Shun, Haruna and Takashi) are arranged. The new game uses recordings of real whale songs to make people serene and happy... something Grosser's not about to let happen!
Yui and Haruna's double-date is ruined when Grosser's Corruptors come to Marine Adventure Land. All seems lost... but then Yui meets two new components of Professor Inukai's software. Can Corrector Yui---with the help of Peace, and Follow---manage to protect Marine Adventure Land from an attack by Grosser himself?
It's an exciting, guided tour inside the world of Corrector Yui...lead by Yui herself! Look back on how Yui and IR first met, and at their adventures to date. Features a closer look at Corrector Yui's various Element Suits--- and also at the abilities of the Corrector Software's programs, and their fight against the evil supercomputer Grosser and his henchmen!
There's trouble at Western Net! The Corruptors have taken over Western Town...but, this time, something's different---the usually selfish, self-serving Corruptors are working as one! Can Yui convince Control, leader of the Correctors, to work with her and the other Correctors to fight off the combined power of Grosser's minions?
A computer-virus goes awry, causing Virus, Jaggy and Freeze to get transformed into mysterious entities. When the virus-infected Corrupters stubbornly refuse his help, War Wolf must make a difficult choice between deleting his comrades, or turning to Corrector Yui for help. Which will he chose you decide. But Warwolf prides himself on honor and loyalty can even an alliance with Corrector Yui be enough to save them and all of Com-net from being destroyed? Or will Warwolf be forced to Destroy his comrades?
In search of the last Corrector software, ""Synchro,"" Yui and friends find themselves on Spy Net. When it seems as though a spy named ""Q"" may actually be the software they're looking for, a race ensues to see who can find ""Q"" first. Will the Corruptors beat Yui to it?