Episode 124: 蘇る幻影騎士団 - Yomigaeru Fantomu Naitsu
(The Revived Phantom Knights)
While searching for Yuzu, who was captured by Serena, Yuya runs into Ruri. While Yuto is rejoiced that Ruri is safe, Ruri suddenly initiates a Duel!
Episode 125: 烈火の竜 - Rekka no Ryū
(The Blazing Dragon)
As Yuya and Yuto try to save Ruri, Serena appears before them. As according to the Doctor’s plan, the Parasite Monsters drive Yuya and Yuto into a corner. Then, something abnormal happens to Yuya!
Episode 126: 悪魔が生まれた日 – Akuma ga Umareta Hi
(The Day the Devil was Born)
As Yuri attempts to turn Sora into a card, Yugo appears before him and challenges Yuri to a Duel. While a fierce battle between Yuri and Yugo unfolds, Yusho, as well as Reiji and others, manage to reach Akaba Leo. Leo begins speaking about the Demon Duelist who leads the world to destruction, as well as the four dragons. What is the reason that the world is divided into four dimensions?