Hello!
Code Lyoko is a French animated television series created by Thomas Romain and Tania Palumbo and produced by the MoonScoop Group that premiered on France 3.
Ref: https://www.last.fm/pt/music/Code+Lyoko/+images/00a8e537b5657bd16a3ff4fa90e21271
Jeremy Belpois, an 8th grade prodigy attending boarding school at Kadic Academy, discovers a quantum supercomputer in an abandoned factory near his school. Upon activating it, he discovers a virtual world called Lyoko with an artificially intelligent girl named Aelita trapped inside it.
Jeremy learns of X.A.N.A., a fully autonomous, malevolent and highly intelligent multi-agent system, that also dwells within the Supercomputer. Using Lyoko's powers, X.A.N.A can possess electronics and objects in the real world like a virus to wreak havoc. X.A.N.A.'s primary objective is to eliminate anyone aware of the Supercomputer's existence so that it will be free to conquer the real world and destroy all humanity.
Jeremy works tirelessly to materialize Aelita into the real world and stop attacks caused by X.A.N.A. He is aided by his three friends Odd Della Robbia, Ulrich Stern and Yumi Ishiyama, who are virtualized into Lyoko to save both worlds from the sinister virtual entity. They achieve this by escorting Aelita to various Towers on Lyoko, which serve as interface terminals between Lyoko and Earth.
Once the Tower is deactivated, Jeremy can launch a "Return to the Past" program, which sends the world back in time to undo any damage caused by X.A.N.A., while anyone scanned into the Supercomputer retains their memory of the events. In "Code: Earth," Aelita is finally materialized, but the group discovers that X.A.N.A. had planted a virus inside of her that will kill her if the Supercomputer is turned off. They realize that they cannot destroy X.A.N.A or Aelita will be destroyed along with it.
@criptomaster