"Eternal Turbo Duelist!!" titled "Eternal Riding Duelist!!" (永遠の決闘疾走者！！ Etānaru Raidingu Dyuerisuto!!) in the Japanese version, is the ninth and final volume of the Yu-Gi-Oh! 5D's manga.
Yusei attempts a comeback combo, but Rex completely overwhelms Yusei with his supreme Dueling. Yusei finds himself in a hopeless situation, unable to do a thing against Rex, and unable to answer to the Duel Dragon's feelings.
Yusei accepts his defeat, but the Duel Dragons start acting weird. When everyone prays, clinging to their hopes, they are able to release their Duel Dragons from the Ultimate God's curse. Thanks to Yusei's prayer, Stardust reveals his true form, and Yusei's miraculous comeback begins.
When everyone thought the Duel was over, Rex is completely taken over by Ultimaya Tzolk'in, transcending all limits and bringing forth the ultimate threat upon Yusei and the others.
Rex puts Yusei and the others in a desperate situation. However, as everyone struggles against the Ultimate God's minions, Yusei unites the power of the Duel Dragons and finds a way fight back.
Yusei reaches the top in the second D1GP and finally earns the right to face Jack Atlas in a Duel to restore his pride. Now, Yusei and Jack will clash in a Turbo Duel to decide who will earn the title of "Emperor of Turbo Duels".
Yusei and Jack clash with their strongest Synchro Monsters, leaving everyone breathless upon a violent exchange of attacks. The winner will emerge as the "Emperor of Turbo Duels".
