Yu-Gi-Oh! Zexal

In Heartland, Yuma Tsukumo aspires to be the world's best Duelist. Despite this, he is not a good Duelist. When he ends up Dueling, Shark, a student known to have pro-level skills, odd things begin to happen and Yuma's story begins.

The Duel between Yuma and Ryoga comes to its conclusion. In order to take down "Leviathan Dragon", Yuma obtains a "Number" monster of his own, "Utopia".

Astral's been unable to leave since Yuma Dueled Shark, so, despite his reluctance, he's begun living with Yuma. At an inconvenient time, Akari Tsukumo has trouble when her PC she uses as a stay-at-home reporter crashes. When her big scoop is deleted as a result of a system down the city suffered, she orders Yuma to find an alternate scoop she can use for another manuscript. When Yuma goes into town, the traffic lights go nuts, causing downtown to fall into chaos. Yuma looks for the criminal who spread the computer virus that caused all this chaos.

Yuma challenges Professor Kitano, who is behind it all. Professor Kitano notes that each time he reduces his opponent's Life Points with "Electronic Computer-Beast Tera Byte" Astral's body weakens, causing him to slowly vanish! To make things worse, the Explosive Virus Time Bomb Ukyo has set is slowly reaching its countdown.

A strange shadow approaches Yuma, which turns out to be Tokunosuke Omoteura, a classmate of Yuma's known for his duplicitous tongue. In the morning, Yuma was reprimanded for a prank he pulled in front of the whole class that he has no memory of causing. As a result, he's been cut off from every one else. Tokunosuke gently says "Let's Duel". With "Baby Tragon" his new Xyz Monster, Yuma might enjoy this duel, but Tokunosuke seems to be planning something.

Tokunosuke steals Yuma's "Utopia", causing Astral to vanish. Tokunosuke had wanted the great power of Numbers, and Yuma tries to Summon "Leviathan Dragon" to fight back, but Tokunosuke's Trap Card takes even that away. When Yuma is pushed into a corner with his field, an unexpected monster will become the Trump Card of the Duel.