a friend. He often rides around on a skateboard. He develops a crush on Shark's sister, Rio. He plays a Gearspring deck; his ace card is "Tin Archduke". The class president in Yuma's class. He tends to add to his statements, even when it is not necessarily a summary. A wily and mischievous kid who often notes that everything in the whole world has a flipside. His English anime name is a reference to Flip Effect monsters in the Yu-Gi-Oh! trading card game. Having been bullied and considered unintelligent when he was younger, Flip had learned to play dirty in order to win duels. However, after Yuma beats him in a duel, he learns to be more friendly. In the manga, one of his quotes "Everyone has an agenda" is used repetitively. According to Yuma, he considers an agenda a fancy word for a day planner. His deck mainly consists of monsters that use Flip Effects, and he has a habit of ending his sentences with "ura", meaning "reversed". Flip has a crafty personality similar to the character Weevil Underwood from the original Yu-Gi-Oh! series. Flip has a big tendency to scheme and to prank others. In the World Duel Carnival, he uses a zombie type deck that doesn't consist of Xyz Monsters. Known as Cat for short, Cathy is a shy girl who has a crush on Yuma but doesn't stand out too well in class. As a result she sometimes sneaked into Yuma's room to do various things while he was asleep. She is slightly more confident as a duelist, using a Cat themed deck. She allegedly has the ability to communicate with cats. A former classmate of Yuma and Tori who moved out of Yuma's school. She supposedly had a crush on Yuma, but later realized that the boy she actually liked was a boy with a similar name. She carries around a large rocket launcher that can also be used as a hoverjet, which she tends to have trouble controlling properly. Usually she will unexpectedly crash into projectiles. She later appears in the World Duel Carnival finals though is knocked out during the knockout phase while protecting Yuma. She uses a "Railroad" deck which focuses on summoning high-level monsters such as "Rocket Arrow Express" and dealing effect damage. Her ace card is "Superdreadnought Rail Cannon Gustav Max". Others He is Kite's younger brother and Dr. Faker's