"Aozora Fishing" centers on the life of high school student Aozora Shou, who moves to a small coastal town to live with his grandfather after the death of his parents. The town is renowned for its fishing culture, and Aozora, despite having no prior experience, becomes drawn to the activity as a way to connect with his new environment and cope with his loss. His grandfather, a seasoned fisherman, introduces him to the basics, and Aozora quickly develops a passion for the craft.

The narrative explores Aozora's growth as he learns the intricacies of fishing, from understanding different techniques to appreciating the patience and discipline required. Along the way, he befriends a group of local students who share his enthusiasm for fishing, each bringing their own unique skills and personalities to the group. These friendships deepen as they participate in local fishing competitions, face challenges together, and support one another through personal struggles.

Aozora's journey is not just about mastering fishing but also about self-discovery and building a sense of belonging. The story delves into themes of perseverance, camaraderie, and the healing power of nature. The coastal setting plays a significant role, with detailed depictions of the sea, weather, and marine life enhancing the immersive experience. The manga balances moments of lighthearted humor with emotional depth, creating a well-rounded narrative that appeals to a wide audience. Through Aozora's experiences, the series highlights the importance of community, tradition, and finding purpose in life's simple yet profound joys.