"Farewell, My Dear Cramer" is a sports manga centered on women's soccer, exploring themes of teamwork, perseverance, and personal growth. The story begins with Sumire Suo, a talented but disillusioned high school soccer player, who initially quits the sport due to frustration with her team's lack of ambition. However, her passion for soccer reignites when she encounters a group of determined players at Warabi Seinan High School, a team struggling to rebuild after losing many members. Suo joins the team, bringing her exceptional skills and competitive spirit, and becomes a driving force in their journey to improve.

The narrative shifts focus to the challenges faced by the Warabi Seinan team as they strive to compete against stronger, more established schools. The team's dynamics are central to the story, with each member contributing unique strengths and grappling with personal insecurities. Midori Soshizaki, the team's captain, embodies resilience and leadership, while others like Onda, a former track athlete, and Tase, a novice player, highlight the diversity of backgrounds and motivations within the group. The manga delves into their individual struggles, such as balancing academics, overcoming self-doubt, and navigating interpersonal conflicts, all while working toward a shared goal.

As the team progresses, they face formidable opponents, including Kunogi High, a powerhouse school with a highly skilled roster. The rivalry between Warabi Seinan and Kunogi adds tension and stakes to the narrative, particularly through the interactions between Suo and Kunogi's star player, Nozomi Onda. The matches are depicted with a focus on strategy, teamwork, and the emotional highs and lows of competition, emphasizing the physical and mental demands of the sport.

The story also explores the broader context of women's soccer in Japan, touching on issues such as limited resources, societal expectations, and the challenges of gaining recognition in a male-dominated field. Through its portrayal of the Warabi Seinan team's journey, the manga highlights the dedication and passion required to succeed in sports, while also celebrating the camaraderie and personal growth that come from pursuing a shared dream.