Sora Perse, known as Sora Shiun'in or Sora Shiunin ( Shiun'in Sora) in the Japanese version, is a character in the Yu-Gi-Oh! ARC-V anime. Interested in the Pendulum Summon Yuya Sakaki created, this mysterious boy decides to become his apprentice. During his first Duel against Shay Obsidian, Sora is revealed to be a soldier of Duel Academy, a "Duel Soldier" training facility in the Fusion Dimension. As a soldier of Duel Academy, he swears loyalty to Leo Akaba and his plan to "unite the dimensions" despite his friendships with Yuya and Zuzu Boyle.
With encouragement from Yuya and Zuzu, Sora eventually realized he was hurting people and reluctantly abandoned his old ways. Since then, he has formally turned his back on Duel Academy and becomes an ally and later member of the Lancers, working to keep Celina and his first friends Zuzu and Yuya safe.