Joe Yuki, one of the coolest DJs in Shibuya, has a secret identity as the leader of gangs. Because of his traumatic childhood, he fiercely hates weaklings and sees winning as his only option in life. One night, an old man is being taunted by the kid known as the human punching bag. The old man reminds Joe of his parents and childhood, and he uncontrollably challenges the kid to a fight. A fight in which he's defeated, and his pride is utterly shattered into pieces. (Source: ANN)

Set 23 years after the end of the original Future Card Buddyfight where the son of Gao Mikado, Yuga Mikado discovers Buddyfight for the first time. When he starts playing the game, he awakens his instincts and becomes an amazing buddyfighter over a short period of time. This attention brings along its own challenges from brand new rivals and friends. However, this fame and joy comes at a cost. This is the next generation of Buddyfight!

An adaptation of the Future Card Buddyfight card game. Future Card Buddyfight takes place in a more futuristic version of today. The card game connects to a parallel universe through special cards (Buddy Rare Cards) that act as portals. They bring monsters to Earth in order for them to become buddies with humans. Through friendship and courage, they take on and fight challenges, known as Buddyfights, where people of all ages have friendly non-hurtful competitions. The main character, Gaou Mikado has just started Buddyfighting. As the story progresses, Buddyfights are seeming to become a little too real...

Third-year high school student Jirou Yakuin is in love with his childhood friend and classmate, Shiori Sakurazaka. Thus, he hopes to be paired with her for the marriage practical: their school's practice of randomly selecting boy-girl pairs to live as pretend married couples while monitoring and rating them on how close they have gotten. Meanwhile, the lively Akari Watanabe wants to be assigned to her crush, the popular and good-looking Minami Tenjin. Much to their dismay, Jirou and Akari find out that not only have they been paired together, but so have Shiori and Minami! Determined to be with their crushes, Jirou and Akari strive to earn as many points as possible, as the top 10 pairs earn the right to switch their partners—so long as both couples agree.