"Hit o Nerae!" centers on Hiromi Oka, a high school student who joins her school's volleyball team despite her initial lack of confidence and experience. The series explores her journey of growth, both as a player and as an individual, as she navigates the challenges of teamwork, competition, and self-doubt. Hiromi's determination to improve is fueled by her admiration for her teammate, Kozue Ayuhara, a skilled and confident player who becomes a source of inspiration and rivalry. The narrative delves into the dynamics of the team, highlighting the struggles and triumphs of each member as they strive to achieve their goals.

The plot progresses through a series of matches and training sessions, showcasing the physical and emotional demands of the sport. Hiromi's development is marked by her gradual mastery of the "hit," a powerful spike that becomes her signature move. The series emphasizes the importance of perseverance, camaraderie, and self-belief, as the team faces formidable opponents and internal conflicts. Key characters include Coach Tanaka, whose tough but supportive guidance shapes the team's progress, and Midori Hayakawa, a talented but reserved player who forms a close bond with Hiromi. The interplay between the characters drives the narrative, with each contributing to the team's evolving dynamics and shared aspirations.

As the story unfolds, Hiromi and her teammates confront personal and collective challenges, from overcoming injuries to dealing with the pressures of high-stakes competitions. The series balances intense volleyball action with moments of introspection, exploring themes of ambition, resilience, and the pursuit of excellence. Through its focus on Hiromi's journey and the team's collective efforts, "Hit o Nerae!" offers a compelling portrayal of the transformative power of sports and the enduring spirit of teamwork.