Yugioh Zexal Au Book One: World Duel Carnival Preliminaries

After Kite and Shark's Duel ends in a Draw to protect Yuma's Golden Key from the Number Hunter, the three of them prepare themselves for the World Duel Carnival, where evil secrets from the past threaten to tear their bonds apart! Will Yuma's Friendship be enough to protect Shark, or will be Trey's family's evil plans be too tough for them to handle?