Tokunosuke Hyori ( manga ) Tokunosuke Hyori ( " Hyōri Tokunosuke " ) is one of the main supporting characters appearing in " Yu - Gi - Oh ! ZEXAL " . He is a friend of Yuma Tsukumo . Biography . History . When Tokunosuke got a new card - " Baby Tragon " - he wanted to show it to his brother . However , he overhears his mother talking about letting Tokunosuke do whatever he wants so that his brother can study in peace . This hurts Tokunosuke , so he goes to show some kids the new card he got , but he hears one of the kids talk about how he only hangs out with Tokunosuke just so he can get some cards from him and doesn ' t care about Tokunosuke at all . This causes Tokunosuke to believe that everyone has a hidden agenda . Yu - Gi - Oh ! ZEXAL . Tokunosuke is first seen defeating an unknown Duelist . Due to an agreement , the boy ' s Deck now belongs to Tokunosuke . At school , Tokunosuke , who was hidden , watching Yuma , determines that he will be his next target , and he believes something fishy must have happened for Yuma to beat Shark . He later runs over to Yuma , asking him for his autograph . Yuma asks who he is , and Tokunosuke responds that he ' s in the neighboring class . In gratitude , Tokunosuke gives Yuma a " Baby Tragon " card and Yuma is ecstatic to receive his own Xyz Monster . Tokunosuke tells him that this is proof of their friendship . As Yuma leaps in the air in excitement , Tokunosuke calls him a fool inside his mind , as he doesn ' t realize everything has an opposite side . Tokunosuke asks how Yuma beat Shark without an Xyz Monster . Yuma says he has one , but it isn ' t technically his . Tokunosuke determines that that must be Yuma ' s trump . Then , during the next day , Tokunosuke Duels Yuma at school . However , Tokunosuke uses " Baby Tragon " to take control of Yuma ' s " Numbers " , and reveals that the paper which Yuma signed was an agreement to bet on their best cards for the Duel . But Yuma uses " Baby Tragon " together with " Needle Swordsman " and manages to win . After the Duel , Yuma offers Tokunosuke " Baby Tragon " back , but Tokunosuke lets it to Yuma , and they become friends , as Tokunosuke realizes Yuma doesn ' t have a bad hidden side . After Yuma ' s lost to Kaito Tenjo , Tokunosuke , Tetsuo , Takashi , Cathy and Kotori form the Numbers Club in order to help Yuma . Tokunosuke later comes up with the information that " Numbers " exist in the Heartland Theme Park , and Yuma , Astral , and the Number Club go to there . Despite all enemies they face , Tokunosuke seems to have fun at the park as if he was going there for fun . He also seems to know all of the main characters from the park , and when Mr . Heartland appeared , Tokunosuke asked him for his autograph , even after he revealed himself to be their enemies . After their escape from the park , Yuma and the members of the Numbers Club gather in Cathy ' s house . Tetsuo asks Cathy what she wanted to show them . She then presses a cat paw - like button , which opens a door leading to a big room , with many researchers and big computers . Cathy explains that as an apology for the trouble she caused , the Numbers Club ' s headquarters would be established there , where they can look up mysterious phenomenons happening throughout the world , and therefore , locate the " Numbers " . The Numbers Club then start helping Yuma , wearing new super hero - like outfits . Deck . Tokunosuke uses a Deck focused on shifting control of the opponent ' s monsters to himself , taking advantage of the " Baby Tragon " card he gives to his opponents .