Jaden Yuki

Jaden Yuki is a fictional character and the main protagonist of the ''Yu-Gi-Oh! GX'' anime and manga series. In the anime, he is a teenager who attends Duel Academy, a school teaching the fictional game of Duel Monsters founded by Seto Kaiba of the original anime. He is placed in Slifer Red dormitory (the lowest ranking), but during the series he is chosen as one of Duel Academy's best duelists. He later gains the Neo-Spacian and Elemental Hero Neos cards, which become his signature monsters. In the third series, Jaden discovers that his childhood favourite card, Yubel, has turned evil and is being cured by a guest teacher, Professor Viper. Yubel transports Duel Academy to an alternate dimension, where Jaden becomes an evil spirit called the Supreme King. Once healed, he gains the powers of Yubel and the Supreme King.

Adventure Series
After his duel with Yubel, Jaden awoken to find himself face to face with Osiris the Egyptian Lord of the Underworld. Osiris tells Jaden that to become the next king of games, he must journey off and face new challenges in different worlds.

He starts his own Adventure series and confesses his love for Alexis Rhodes, and they both started a relationship.

Role in the series
As a character with his own crossover series, he has a presence in the United Universes with his own team, but is one of those that doesn't have that much contact with the Lodgers. They only know of him through Jeffrey Dragonheart.