Yuma Tsukumo ( D Team ) Yuma Tsukumo is a character in the spin - off manga " Yu - Gi - Oh ! D Team ZEXAL " . This is an alternate incarnation of Yuma Tsukumo , a character from the " Yu - Gi - Oh ! ZEXAL " manga and anime . Biography . Yuma aims to be the Duel Champion , and forms a Dueling Team with Kotori , Tetsuo and Takashi , named Team ZEXAL . Astral is a Dueling Ghost who helps Yuma in his Duels , but he can only be seen by him . By that way , when Yuma talks to him , the others think he is talking to himself . In addition with Yuma ' s arriving late for his team ' s first meeting , Kotori and Takashi get worried about Yuma being the leader , and Tetsuo challenges him to a Duel - if Tetsuo wins , he will be the leader . Yuma accepts the challenge , and wins , so that others accept him as the leader . Some time later , after defeating some kids , Yuma gets cheered up , but Astral tells him he is only able to win due to his help , and that he relies on monsters too much . Yuma says that intensely attacking with monsters is more interesting and that he can win without Astral ' s help . Tokunosuke hears what Yuma says about his strategy and goes to Team ZEXAL to tell them that he doesn ' t have any friends , so he doesn ' t really have anyone he could Duel with . Hearing that , Yuma Duels Tokunosuke . During the Duel , Yuma plays very recklessly , falling in Tokunosuke ' s tricks , although Astral kept warning him about them . However , Astral then backs helping Yuma , and he manages to win . After Tokunosuke loses to Yuma , he explains that he wanted to enter a certain Dueling Team , Team Shark , and that he would only be accepted if he defeated the leader of the ZEXAL Team , Yuma . Then , the leader of the Team , a boy nicknamed Shark , shows up . Tokunosuke rushes up , but he is despised by Shark ' s Team . Yuma gets angry with that , and confronts Shark . Shark calls Team ZEXAL weak , and challenges Yuma to a Duel under some conditions : first , they will bet their teams ' badges , which symbolizes the pride of the team ; and second , if Yuma lose , Tokunosuke will enter Shark ' s team as a slave who does every work . With no other option , Yuma accepts the Duel . Astral instructs Yuma on how to Duel , but Yuma doesn ' t listen to him and does things his way , causing a mix - up which led him to lose . However , when Shark attempts to take his badge , he sees Yuma ' s cards , and notes that Yuma could have won . Because of that , he declares the dispute as invalid , and tells Yuma that the next time they Duel , he ' ll use his true strength . After the loss , Yuma ' s friends are worried about him , and go visit him . However , they are surprised seeing Yuma isn ' t feeling down at all - actually , that made him want to become stronger . Takashi suggests modifying Yuma ' s Deck in order to improve it , and everyone decides to help out . Decks . Yuma uses a Deck similar to his anime Deck , with some additions from the " OCG " . After losing to Shark , Yuma rebuilds his Deck with the help of his friends . It becomes more focused on Xyz Summon tactics . He later adds several new cards to his Deck before entering the Team Duel Tournament . Before Yuma and his team face Master Evil , they discuss about the possibility of Master Evil having watched their Duels and developed a strategy to counter their moves , so they help Yuma slightly rebuild his Deck .