"Attacker You!" is a sports manga centered around volleyball, written and illustrated by Shizuo Koizumi. The narrative revolves around Yu Hazuki, a determined and passionate middle school student with a natural talent for volleyball. After transferring to a new school, Yu joins the volleyball team, where she faces challenges both on and off the court. Her fiery personality and relentless drive to improve often clash with her teammates, particularly Nami Hayase, a skilled but reserved player. The dynamic between Yu and Nami evolves from rivalry to mutual respect as they work together to elevate their team's performance.

The story explores themes of teamwork, perseverance, and personal growth. Yu's journey is marked by her struggles to balance her intense focus on volleyball with her academic responsibilities and personal relationships. The manga delves into the pressures faced by young athletes, including the expectations of coaches, parents, and peers. Key supporting characters include Coach Nakahara, who provides guidance and mentorship, and Yu's classmates, who offer both camaraderie and conflict.

As the narrative progresses, the team competes in various tournaments, facing formidable opponents and overcoming internal conflicts. The matches are depicted with a focus on strategy, skill, and the emotional highs and lows of competition. Yu's growth as a player and a person is central to the story, as she learns to channel her passion constructively and inspire those around her. The manga concludes with a sense of accomplishment and forward momentum, leaving room for reflection on the characters' journeys and the enduring impact of their experiences in volleyball.