"Backflip!!" centers on the journey of Shoutarou Futaba, a high school student who discovers a passion for men’s rhythmic gymnastics after witnessing a captivating performance by the Ao High School team. Inspired by their artistry and athleticism, Shoutarou joins the team, despite having no prior experience in the sport. The series explores his growth as he navigates the challenges of mastering complex routines, building teamwork, and overcoming personal insecurities.

The narrative highlights the dynamics within the Ao High School rhythmic gymnastics team, emphasizing camaraderie and perseverance. Key characters include Ryouya Misato, the team’s stoic and skilled captain, who initially doubts Shoutarou’s potential but gradually recognizes his dedication. Other team members, such as the cheerful and supportive Onagawa and the reserved yet talented Watari, contribute to the group’s evolving chemistry. Each character brings unique strengths and struggles, adding depth to the team’s collective journey.

As the story progresses, the team prepares for competitions, facing rival schools and internal conflicts. The series balances intense training sequences with moments of personal reflection, showcasing the physical and emotional demands of rhythmic gymnastics. Themes of self-discovery, friendship, and the pursuit of excellence are woven throughout the narrative, as the characters strive to perfect their routines and achieve their goals.

"Backflip!!" also delves into the broader world of rhythmic gymnastics, portraying the sport’s technical intricacies and the dedication required to excel. The series captures the tension and excitement of competitions, as well as the bonds formed through shared challenges. Through its focus on teamwork and individual growth, the story presents a compelling exploration of ambition and resilience in the context of a niche but visually stunning sport.