Correctors
Eight softwares who have a close relationship with Yui throughout the series and, except for I.R. have the same appearance as humans. They were originally one software called the Corrector, but were broken down into eight softwares as a result of 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 the finale of the first season, it is revealed that the way they correct Grosser is their self-sacrifice. In the second season, Correctors and Yui deal with the unknown computer virus Beagle.
Control (コントロル, Kontororu)
Voiced by: Hiroki Takahashi
Corrector Software No. 1, The Regulator. Yui meets him in a space adventure site resembling a MMORPG. He has the ability to temporarily stop time, enabling him to move at light-speed velocity. His power in the Wind Element Suit allows Yui to stop time for about 15 seconds, which can be upgraded to 30 seconds if other Correctors such as I.R. borrow its power. Though nice, he has a "hero-guy" type personality and insists on being the team leader and a great hero, which initially causes Yui to dislike him and sometimes puts him at odds with the other Correctors. He mainly serves as comic relief, especially in the second season.
Synchro (シンクロ, Shinkuro)
Voiced by: Takashi Matsuyama
Corrector Software No. 2, The Synchronizer. Not much is known about him, 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 he has excellent fighting abilities on his own. His power of fire can be bestowed to other Correctors, allowing them to access the Fire Element Suit. He has a loyal personality and seems to have feelings for Yui, confessing to Inukai that he wants to follow her until the end. The Beagle virus forces him to stay in War Wolf form for most of the second season, reminding him of his previous bad deeds and causing him to become rather explosive, which is worsened by Yui's attitude and her calling him "Doggy". In the finale, he returns to his original form and embraces Yui.
Ante (アンティ, Anti)
Voiced by: Michiko Neya
Corrector Software No. 3, The Predictor. Yui meets her on a love fortune-telling site. She has a wise, maternal personality and possesses the ability to foresee the future. However, her visions, while mostly accurate, can sometimes deviate, especially when she does not have enough data/knowledge about the subject. Her power enables Yui to access the Wind Element Suit and grants her the ability to predict enemies' movements and attacks. She often becomes a subject for Control's flirting, but evades it due to her ability, leaving Control in distress.
Eco (エコ, Eko)
Voiced by: Kumiko Watanabe
Corrector Software No. 4, The System Maintainer. Yui meets him on a rainforest-like simulation. He has the ability to control nature, like water and plants. His power enables Yui to access the Water Element Suit and grants her the ability to control nature at will, which she can use as a defensive, recovery, or offensive tool. He has a rebellious, childish personality and dislikes anyone who desecrates nature, to the point of kidnapping those who litter on the rainforest simulation. When Yui meets him, he initially hates Professor Inukai, whom he believed had left him. However, he learns that Inukai actually loves him and the other Correctors and left him there for his own safety.
Rescue (レスキュー, Resukyū)
Voiced by: Akiko Kimura
Corrector Software No. 5, The Repairer. She has the ability to heal damage, including Element Suit damage, and her power in the Water Element Suit grants Yui the ability to summon a barrier that can repel attacks. She has a sweet, naive and energetic, and polite personality. She is not prone to fighting, and her fighting style involves using non-lethal force and utilizing a vast array of traps and gadgets, leading to her calling herself the "Trap Princess". Her antics and naivety disturb Freeze, whom Rescue seems interested in. In the second season, she fights using bandages from her halo and anti-Beagle spray, and can detect virus sources using a radar on her halo.
Peace (ピース, Pīsu)
Voiced by: Kazuhiko Nishimatsu
Corrector Software No. 6, The Archiver. A pacifist old man who calls himself a "Peace Defender", but ironically has a knack for building destructive weapons. He initially dislikes Yui for destroying his solitude in the remote area he inhabited, but later helps her drive away Grosser's Corruptors by lending her his power. His power enables Yui to access the Fire Element Suit and the "Flame Bomber" projectile attack. A wise person, he always speaks what he feels is right, even if it causes conflict with the other Correctors. In the second season, the Corrupters use his data to clone him, wreaking havoc on the ComNet and causing the distraction they needed to carry out their plan.
Follow (フォロー, Forō)
Voiced by: Shinobu Satouchi
Corrector Software No. 7, The Compiler. Yui first met him and his friend Peace at a secluded area, separated from the main domain of the marine adventure simulation created by her father's company. A fat guy with a playful, sweet, and almost childish demeanor, he likes Yui at first sight because of her cuteness. He has the ability to mimic others and copy their abilities, which can be a nuisance to others, and is the Corrector with the biggest memory power. His power activates the Earth Element Suit and greatly changes Yui's power and weight in her Basic Element Suit.
I.R. (IR, Ai Āru)
Voiced by: Tomohiro Nishimura
Corrector Software No. 8, The Installer. The first Corrector Software Yui meets and her best friend, despite annoying her when nagging her about her duty as Corrector. He has a tendency to end his sentences with "Thank you". He resembles a yellow, robotic Japanese raccoon dog (raccoon in the English translation) and is sometimes referred to as such, which he hates. He made the Basic Element Suit for Yui from a magic girls outfit stored at Galaxy Land, downloading it to Yui in Season 2. He can also access the Earth Element Suit, giving Yui a large physical power boost.
