best friend. Yui's best friend. Yui's friend. Yui's friend. Yui's teacher. Though she's actually a good, supportive teacher, her childish personality can sometimes create trouble. Correctors Eight softwares have close relationship with Yui throughout the show (Except for I.R. have same appearance as humans). Originally one software called the Corrector, but broken down into eight softwares under Grosser's attack. As such, each piece of software concentrates on a specific task, and Yui must learn to integrate their skillsets to defeat Grosser's minions, and eventually, Grosser himself. In finale of the 1st season, it's revealed that way they correct Grosser is their self-sacrifice. In 2nd season, Correctors and Yui deal with unknown computer viruses. Corrector Software No. 1, The Regulator. Yui meets him in a space adventure site (not unlike an MMORPG). He has the ability to practically stop time for a limited time, enabling him to move at light-speed velocity. His power in the Wind Element Suit makes Yui able to stop time for about 15 seconds, and if other Correctors (such as I.R.) borrow its power, the time can be strengthened to 30 seconds. He has a "hero-guy" type personality and insists on being the team leader and great hero (treats Yui like a damsel in distress, said he didn't need a woman's help, always tries to go first without everyone's concern, tries to steal the spotlight every time, has some narcissistic streak, etc), which at first makes Yui tend to dislike him, and sometimes puts him at odds with the other Correctors, though he is actually a nice. He is mainly a comic relief for the show (especially 2nd season). Corrector Software No. 2, The Synchronizer. Not much is known about this Corrector, since he was lost at the beginning of the series. At the end of the first season it is revealed that he was corrupted and became the Corruptor program War Wolf. His ability is similar to Wolf (using fire bursts as weapons), and one of the Correctors that has excellent fighting abilities on his own. His power of fire can be bestowed to other Correctors, to let them access the Fire Element Suit. He has a loyal personality, seems to have some feelings for Yui (refused Professor Inukai's orders to run from Grosser and goes save Inukai, or is the one that opposes Inukai's decision to transfer Corrector power from Yui to Haruna, refuses to