Ray Akaba

Ray is a character in Yu-Gi-Oh! ARC-V anime series. She is a girl who is strongly connected with Yuzu Hīragi and her dimensional counterparts. She is a key part to Leo Akaba's Revival Zero's plan to defeat a Duelist named Zarc.

History
Ray was a Duelist from the original dimension and was acquainted with Leo. When a Duel champion, Zarc, went mad from his thirst for power and began his conquest, Ray sensed that the four dragons Zarc has summoned were enraged at them. Now that the four dragons have a physical body, they finally able to unleash their fury. As the whole world on the verge of destruction, together with Leo, Ray developed four cards that capable of stopping Zarc's rampage. She used these cards and faced Zarc alone. While she succeeded in stopping Zarc, the world was split into four dimensions and Ray's soul somehow split into four fragments that reborn as Yuzu Hīragi, Serena, Rin, and Ruri Kurosaki.

Fusion Dimension Arc
Leo revealed that he was planning to enact a plan known as Revival Zero. This plan was to defeat Zarc once and for all by resurrecting Ray by fusing Yuzu, Serena, Rin, and Ruri.