Jaden:--------The Yu-Gi-Oh! GX anime begins with Jaden, intending to attend Duel Academy, bumping into the protagonist of the original Yu-Gi-Oh! series, Yugi Mutou, on his way to the school's entrance examinations, being late and rushing. Yugi gives him a Winged Kuriboh card. Jaden receives a low score on the exam's written component, and is therefore placed in Slifer Red, the lowest-ranked dormitory, alongside characters Syrus Truesdale and Chumley Huffington, who become his new friends.Jaden makes several enemies at the Academy, including Vellian Crowler, whom Jaden defeats in his examination duel. Out of spite, Crowler tries to kick Jaden out of school on many different occasions before finally beginning to respect him.Jaden is shown to be an accomplished duelist, defeating the aforementioned Crowler during his examination duel, Chazz Princeton in a school-wide duel, and Bastion Misawa for the representative position in an inter-school duel. He also defeats most of the Shadow Riders. In the first season, his first major school sanctioned duel with Chazz awarded him a promotion to Obelisk Blue, which he turned down in order to stay with his friends in Slifer Red. Chazz remained a rival for Jaden during much of the first two seasons, and became a friendly rival mid-way during the events of the Society of Light story arc.In the second season, Jaden ventures into an extraterrestrial realm known as "Neo Space" after being defeated in his second Duel with Aster Phoenix and losing the ability to see his cards. There he learns of the ongoing battle between the forces of darkness and light. With the help of the resident Neo-Spacians, Jaden adopts the role of the universe's defender, wielding the "darkness of justice" against Sartorius and the Society of Light.[2] He is charged with the task of rescuing most of his converted friends from the organization's clutches. Jaden is also entrusted one of the keys to the mind control satellite of Misgarth by Sartorius' good personality, and proceeds to purge the Light of Destruction from the diviner's body.Jaden as Supreme King.Jaden as Supreme King.In the third season, Jaden is pursued by a deranged Yubel whose dedication to its mission had long since warped into a sick obsession with Jaden. After one of his friends, Jesse Andersen, sacrifices himself in order to defeat the deranged spirit, Jaden goes on a rescue mission which forces him to confront his own feelings of inferiority and doubt. He succumbs to them, temporarily straying off the path of a hero by becoming the ruthless ruler of the third alternate dimension, the Supreme King. As Supreme King, Jaden duels and collects the souls of numerous innocents to complete the Super Polymerization card, but is defeated by Axel Brodie.Restored to his former self, Jaden confronts Yubel and taps into the power of Supreme King inside him to duel. Yubel then reveals she was once a human who volunteered to become a monster to protect Jaden's past incarnation as a king, whose alter-ego Supreme King was destined to wield the power of darkness to keep balance with the Light of Destruction. Jaden, eventually forgiving Yubel, fuses her soul with his soul, absorbing her powers and vanishing as the different dimension closes. Jaden returns to the original world after a wish on a falling star by Syrus results in Jaden crashing back to Duel Academy inside a meteor.---------------------------------------Yugi Muto---------When Yugi solved the Millennium Puzzle, he gained dark and mysterious powers.He's got a big heart and is always genuine in his efforts to help others.---------------------------------------Yami Yugi---------Yami Yugi is Yugi's alter ego. He used to be locked inside the MillenniumPuzzle.