In "Cheer Boys!!," Haruki Bandou, a shy first-year university student, is relieved to be freed from martial arts after sustaining a shoulder injury, despite coming from a family that runs a dojo—he never truly enjoyed judo. His best friend, Kazuma Hashimoto, surprisingly follows suit and quits the university's judo club. Rather than taking a break, Kazuma suggests forming an all-male cheerleading squad, which catches Haruki off guard. However, with some persuasion, Haruki joins Kazuma in creating this unique group. Alongside their newly recruited teammates, Haruki and Kazuma form the Breakers, becoming the first male cheerleading team at Meishiin University. As they aim to break barriers and challenge preconceptions about cheerleading being a female-dominated activity, they must overcome physical challenges, societal biases, and personal insecurities.