Yuma Tsukumo is the spirited and optimistic protagonist of the anime series Yu-Gi-Oh! ZEXAL. As a passionate Duelist with a strong sense of justice, Yuma embarks on a journey to become the world’s greatest Duelist. He possesses the Emperor’s Key, which connects him to Astral, a mysterious being who aids him in his duels. Throughout the series, Yuma grows from a novice into a skilled Duelist, forming deep friendships and confronting powerful adversaries. His determination and unwavering belief in himself and his friends are central to his character and the series' narrative.