Cardfight!! Vanguard is a Japanese multimedia franchise created in collaboration between Akira Itō, Satoshi Nakamura, and Bushiroad. The series revolves around a trading card game where players, known as Cardfighters, battle each other using decks of cards to summon powerful units. The anime follows Aichi Sendou and his friends as they enter the world of Vanguard, facing challenges and forming bonds through the game. The franchise has expanded into multiple anime series, manga, and card game iterations since its debut in 2011.