Yuma Tsukumo is the main character in the anime series Yu-Gi-Oh! Zexal. He is a passionate duelist who aims to become the best in the game of Duel Monsters. Yuma is known for his optimistic personality and determination, often relying on his friends and allies to help him in battles. In Duel Monsters, Yuma uses a unique deck centered around the Number cards, which are powerful entities that can turn the tide of a duel. His signature card is Number 39: Utopia, a formidable monster that embodies his fighting spirit and desire to protect others.