"Rokudenashi Blues" is a manga series set in the late 1980s, centering on Maeda Taison, a high school student with a passion for boxing and a reputation as a delinquent. Taison attends Meiryo Academy, a school notorious for its rough student body and frequent brawls. Despite his tough exterior, Taison is driven by a strong moral code and a desire to protect his friends and uphold justice. His dream is to become a professional boxer, and he trains rigorously to achieve this goal, often balancing his ambitions with the chaotic environment of his school life.

The narrative explores Taison's relationships with his classmates, particularly his rivalry with fellow delinquent Shibata Jun, who shares a complicated history with him. Their dynamic oscillates between fierce competition and mutual respect, as both characters navigate their personal struggles and aspirations. Taison's friendship with his loyal sidekick, Takeda, adds a layer of camaraderie and humor to the story, while his interactions with other students, such as the intelligent and level-headed Kato, provide a contrast to the otherwise volatile school environment.

The series delves into themes of youth, rebellion, and self-discovery, often portraying the challenges of growing up in a world where violence and conflict are commonplace. Taison's journey is marked by numerous fights, both in and out of the boxing ring, as he confronts rival gangs, corrupt authority figures, and his own inner demons. These conflicts serve as a backdrop for his growth as a character, highlighting his determination, resilience, and unwavering sense of justice.

"Rokudenashi Blues" also incorporates elements of comedy and slice-of-life, offering moments of levity amidst the intense action. The manga captures the spirit of its era, reflecting the social dynamics and cultural attitudes of late 1980s Japan. Through its blend of humor, drama, and action, the series presents a multifaceted portrayal of adolescence, emphasizing the importance of friendship, perseverance, and staying true to oneself.