Justice (Guilty Gear)

Justice is one of the main villains from the Guilty Gear series.

Story
Justice was once a woman know as Aria, lover of a man named Frederick. A unnamed scientist, known only as “That Man”, used Aria and Frederick for his experiences, but it is not known if they were volunteers or were forced by him. Aria became the first complete Gear, a humanoid with an immense magical power, but lost all of her memories, then taking the name Justice. A series of gears were created after her, but they didn't had their own sentience like Justice. Justice had the unique power of controlling all other Gears, starting to think that humans were inferior to the Gears. Never tolerating the existence of humans, Justice decided to eliminate all humans from earth, starting a bloody war that became known as the Crusades. The Sacred Order of Holy Knights was created to fight Justice and her army of Gears. The Crusades went on for one hundred years, resulting in the mass genocide of many countries, especially Japan. Justice fought and defeated the leaders of the Holy Knights, Kliff Undersn and Ky Kiske, then fighting Sol Badguy, who was also a Holy Knight. After defeating Sol, she realizes that he is also a Gear, and attempts to control him. However, Sol never fall into her submission, knocking Justice and allowing Ky and the rest of the Holy Knights to defeat Justice and seal her away, thus ending the Crusades.

All was peaceful until came the notice that the seal of Justice was cracking. The Postwar Administration Bureau decides to create a tournament that was called the Holy Order Tournament, in order to gather warriors and create a new Holy Order to fight the imminent menace of Justice. Sol Badguy and Ky Kiske enter the tournament, knowing that something was wrong in it, since the tournament had no rules and even criminals were allowed to compete. Sol Badguy eventually wins the tournament, meeting with Testament, who was a Gear that created the tournament in order to gather the sacrifices required to break Justice's seal. With only one more sacrifice needed, Testament fought Sol but lost, deciding to use his own blood as a sacrifice. Justice is unsealed, recognizing her old enemy and deciding to kill him, so that she can resume her war against humans. Sol defeats Justice, who recovers her memories before dying, saying to Sol that she wished that the three of them could talk a last time, recognizing Sol as her former lover Frederick. Sol destroys Justice, vowing to take his revenge against “That Man”.