"The Job of a Service Committee Member" centers on the daily life and responsibilities of high school students who serve on their school's service committee, a group tasked with maintaining order and assisting their peers. The protagonist, a diligent and earnest student, is unexpectedly appointed to the committee despite having no prior interest in such activities. The narrative explores the challenges and rewards of balancing academic life with the demands of committee work, which often involves mediating conflicts, organizing school events, and addressing student concerns.

The story delves into the interpersonal dynamics within the committee, highlighting the diverse personalities and motivations of its members. The protagonist gradually forms bonds with fellow committee members, including a strict but fair leader, a laid-back yet resourceful strategist, and a shy but observant newcomer. Together, they navigate the complexities of student life, tackling issues such as bullying, academic pressure, and social hierarchies.

As the committee works to improve the school environment, the protagonist undergoes significant personal growth, learning the value of teamwork, empathy, and perseverance. The series also examines the broader impact of the committee's efforts on the student body, showcasing how small acts of service can foster a sense of community and mutual respect. Through its episodic structure, the manga balances lighthearted moments with more serious themes, offering a nuanced portrayal of adolescence and the responsibilities that come with leadership.