Yu-Gi-Oh! GX, also known in Japan as , is an anime spin-off and sequel series to the original Yu-Gi-Oh! anime. It aired in Japan on TV Tokyo from October 6, 2004 to March 26, 2008, and was succeeded by Yu-Gi-Oh! 5D's. Yu-Gi-Oh! GX follows the exploits of Jaden Yuki (Judai Yuki in the Japanese versions) and his companions as he attends Duel Academia (Duel Academy in the 4Kids version). It was later dubbed in English by 4Kids Entertainment and a manga spinoff was created by Naoyuki Kageyama. The series was followed by Yu-Gi-Oh! 5D's in 2008. Plot Taking place ten years after the events of Yu-Gi-Oh!, Yu-Gi-Oh! GX follows a new generation of duelists including a young boy named Jaden Yuki (Judai Yuki) who attends Duel Academy, a school founded by Seto Kaiba, where aspiring duelists train in the field of Duel Monsters. The academy has an internal ranking system based on the "Egyptian God" cards from Battle City. Obelisk Blue is the highest dorm and is filled with only the best duelists or those who come from elite families. Ra Yellow is the second-highest dorm and is made up of duelists who score and perform well in school and have the potential to be the best. Slifer Red is the lowest dorm and consists of those who do not perform well and need much help to improve. Students are able to graduate to the next dorm if they show improvement. In the universe of Yu-Gi-Oh!, this series focuses on the type of summoning called "Fusion Summon", which the protagonist and many characters perform. For the first year at Duel Academy, Jaden befriends many students such as Syrus Truesdale (Sho Marufuji), Jaden's roommate with low self esteem and Zane's brother, Alexis Rhodes (Asuka Tenjoin), one of the top female duelists and Jaden's love interest, Bastion Misawa (Daichi Misawa), an excellent duelist with an extremely high intellect, Chazz Princeton (Jun Manjoime), one of Jaden's rivals with an elitist personality, and Zane Truesdale (Ryo Marufuji), Jaden's other rival and the best duelist in the school. Together the main cast faced major threats including the Shadow Riders (Seven Stars), who intended to revive the Sacred Beasts, powerful cards that could destroy the world. This group was led by Kagemaru and consisted of Nightshroud (Alexis's brother Atticus possessed by darkness), Camula (a vampire), Tania (an Amazon Warrior), Don Zaloog (a duel spirit), Abydos (an