Third-year middle school student Yu-yu Kondo lives in Kanazawa city of the country of Kaga. Being unable to reject requests, Yu-yu often gets caught up in his sister's hobbies. When Yu-yu could no longer bear it and ran away from home, he was saved by Megumi Okura. Megumi invites Yu-yu to the Night Amusement Park "Wonder Hill" where her friends gather. The amusement park is where many youths of the Vanguard-centric group "Team Blackout" gather. And this is how Yu-yu encounters Vanguard and was drawn in by the appeal of Vanguard and the world and friends he had never seen before.
Season 0
Season 1
Yu-yu is a boy living in Kanazawa, Kaga Province. He is 15 years old and in his third year of junior high school. He has the ability to sense the feeling of others, but he is troubled by the fact that he cannot say no when asked. One day, Yu-yu could no longer stand going along with his sister's hobby, so he ran away from home. The one who saves him is Megumi Okura. Megumi invites Yu-yu to a nighttime amusement park called "Wonder Hill" where her friends hang out.
Season 2
Four months after the battle at Nagoya Castle, Yu-yu and friends received an invitation to a tournament. That "Deluxe" tournament aims to determine the strongest fighter, bringing together both "Front Fighters" who are active in official tournaments, and hidden powerhouse "Counter Fighters" like "Blackout" that compete against each other for flags. The existing characters from overDress will be competing with new characters from will+Dress such as Raika, Michiru, and Urara, to become the strongest of them all!
Season 3
Yu-yu, Raika, and Touya were invited to America after the "Deluxe" tournament in Japan. They went on a tour of exhibition matches. Danji, who had arrived earlier in America to look into the background of the Deluxe tournament at Michiru's behest, suspects a connection with the case of the missing fighters.
Season 4
Vanguard becomes dominated by the Uniformers. A world where everyone can become the strongest... Is the world envisioned by AI Gui ideal? Yu-yu and his friends fight for the sake of enjoyable cardfights with individuality!
Season 5
One day, six cards known as the "Six Desires" were born with the power to change fate. Six fighters were chosen, and would come to possess those six cards. What awaited them was the "Fated Clash," where they would fight each other until the end, and the last one standing would have any wish granted. A youth named Akina Myodo, who wants to help his frail sister, participates in the Fated Clash to have his wish granted. And thus, he throws himself into battles with powerful fighters.
Season 6
Gabwelius, who assembled the owners of the Fated One cards, reveals the truth behind the Fated Clash.
Season 7
A tournament to decide the strongest Vanguard cardfighter "Deluxe", Akina and the other fighters have received an invitation to the tournament. This time, many legendary fighters will also be participating!
Season 8