Yuuyu's triumphant victory at the Deluxe tournament earns him and his friends an all-expenses-paid trip to America for a series of exhibition matches. What should be a celebration of their card-fighting prowess quickly turns into something far more complicated when Danji, already on the ground investigating the tournament's origins, connects the dots between recent fighter disappearances and the very competition they just won. As Yuuyu and Raika settle into exhibition matches across the country, they find themselves caught between competing agendas. The friendly competition they expected collides with a darker mystery unfolding in the background, one that suggests the Deluxe tournament was never about crowning a champion at all. Vanguard battles take on new weight when the stakes shift from personal glory to uncovering what happened to missing fighters. The American leg of their journey becomes equal parts traveling exhibition and dangerous investigation, forcing the group to question who they can trust and what hidden forces might be watching their every move.