Das Duell mit Mach geht weiter, und Yuma muss sich entscheiden, ob er seine Freunde retten oder den Kampf gewinnen will. Jede Aktion im Duell entscheidet auch über das Schicksal von Shark und Nash.
Yuma's attacks help open the way for Shark and Dumon to escape to safety, but come at the risk of receiving damage from Mach's traps and spells. After Yuma summons out Utopia, Mach brings out his own Number, Number 44: Sky Pegasus, which forces Yuma to take more damage to keep Utopia on the field. As Shark and Dumon make their way through each room, they find murals depicting a tragic legend about a white pegasus. Wanting to learn how the legend ends, Dumon urges Yuma to keep protecting Utopia, believing the legend is about protecting your friends. Although Dumon reveals his true form, after Shark's power repairs his Baria Lapis and he recovers his energy, Yuma chooses to protect Utopia. With Astral helping Yuma find a loophole in Mach's combo, Yuma manages to bring out Utopia Ray Victory and win the duel. Mach explains the rest of the legend before leaving Yuma with the Number card, while Dumon states he will settle things with Yuma next time. Yuma also finds a coin which he believes to be a memento from Kazuma.
