Yubel is the primary antagonist of the Dimension World arc of the Yu-Gi-Oh! GX anime. A magnificent Duel Monster whose card was in Juudai Yuuki's possession when he was a child, Yubel was deranged and manipulative, exploiting various individuals to accomplish her machinations. She is later redeemed after Juudai fuses with Yubel, reuniting them forever. Since then, she acted as Juudai's partner, similar to Yuugi's relationship with Yami Yugi, as well as Yuma's relationship with Astral.