"The Day the Devil was Born" is the one hundred and twenty sixth episode of the Yu-Gi-Oh! ARC-V anime. It aired in Japan on October 9th, 2016.

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 Declan and others, manage to reach Leo Akaba. Leo begins speaking about the Devil 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?