Yu-yu Kondo is a 15 year-old third-year middle school student who lives in Kanazawa City, in the country Kaga with “the ability to sympathize with the hearts of others”. Due to his meek personality, though, he finds it hard to reject others and often becomes the unwilling subject of his sisters’ hobbies.The story begins as Yu-yu, exasperated at his own plight, runs away from home and encounters Megumi Okura. She invites him to the “night amusement park” Wonder Hill to meet her friends.

The amusement park is the gathering place for “Team Blackout”, a group of youths who play Vanguard. And on the night of Yu-yu’s first visit, a serious battle begins to unfold with the team’s flag at stake, with Team Blackout’s leader Danji Momoyama, a skilled fighter with a 19-win streak, taking on a challenge from the mysterious powerhouse fighter, Tohya Ebata.

The intense struggle between the two fighters enthralls Yu-yu, as the cardfight before his very eyes transforms into a scene from the planet Cray itself…

An exciting world of wonders and adventure awaits him, alongside his new friends!

[Source: official English website]

Yu-yu Kondo loses to Tohya Ebata, and the banner that symbolizes Team Blackout goes up in ashes.

And while Yu-yu and his friends are still stunned by this turn of events, their leader Danji Momoyama returns and challenges Tohya to a Vanguard fight, a fight that ends in a clear victory for Danji.

As the group starts to shower Tohya with a deluge of jeers, Danji announces his departure from the team, and follows it up with appointing Tohya as the next leader, leaving the team members in shock.

Meanwhile, Masanori and Shinobu continue their banner hunt under the name of Team Daybreak, under the command of Haruka Sokawa.

And there is also the mysterious girl, Mirei Minae.

What awaits Yu-yu and his friends?

[Source: Funimation]

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.

[Source: official English website]

Yu-yu, Raika, and Touya were invited to America after their win in the “Deluxe” tournament in Japan, and went on a tour of exhibition matches.

It was one blazing fight after another as their opponents were all top ranking fighters from Deluxe USA. Danji, who had arrived earlier in America to look into the background of the Deluxe tournament at Michiru’s behest, begins to suspect a connection with the case of the missing fighters. Meanwhile, a new force emerges in Japan, with their ideal of achieving the “Ultimate Fight” in cardfights.

What is their goal of recruiting more and more fighters? This will eventually come to cast a shadow upon the future of Yu-yu and the rest of Blackout…

[Source: official English website]

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!

[Source: official English website]

Using high-level plays by strong fighters as its base, the “UNI app” allows beginners to quickly improve their skills and has brought about a drastic change in how Vanguard is played. Cementing its place as a dream program with global appeal, Vanguard has become dominated by the Uniformers.

Meanwhile…
Masanori schemes in the shadows.
The mysterious Shirogane has a string of tournament victories.
Halona finally reveals her true capabilities.
Sophie continues to hold the title of “The Strongest”.
Jinki aims to create the “ultimate fight” to fulfill his brother’s dying wish.

The ideal world envisioned by AI GUI is slowly coming to fruition – a world where everyone and anyone can become the strongest.

With the odds stacked against them, Yu-yu and friends must fight to reject this monotonous vision of Vanguard, and strive for the sake of enjoyable cardfights with individuality!

[Source: official English website]