"WAVE!! -Let's go surfing!!" is a sports anime centered around the world of competitive surfing, blending themes of friendship, rivalry, and personal growth. The narrative unfolds across multiple interconnected stories, each focusing on different characters and their journeys within the surfing community.

The series begins with Shōnosuke Mikami, a high school student who moves to Chiba Prefecture, a region known for its surfing culture. Initially uninterested in the sport, Shōnosuke is drawn into the world of surfing after encountering a group of passionate surfers. His journey explores the challenges of learning a new skill, overcoming self-doubt, and finding a sense of belonging within the surfing community.

Another key storyline follows Masaki Hinaoka, a talented surfer with a carefree attitude. Masaki’s natural ability on the waves earns him admiration, but his lack of discipline and focus becomes a recurring obstacle. His arc delves into the balance between raw talent and the dedication required to excel in competitive surfing, as well as his evolving relationships with fellow surfers.

The series also highlights the story of Ryō Maeda, a former professional surfer who returns to the sport after a hiatus. Struggling with past failures and the pressure to reclaim his former glory, Ryō’s narrative examines themes of redemption, perseverance, and the emotional weight of competition. His interactions with younger surfers, including Shōnosuke and Masaki, provide mentorship and insight into the sport’s deeper nuances.

Other characters, such as the ambitious and disciplined Kōsuke Shibasaki and the enigmatic surfer Yūtarō Tachibana, add further depth to the narrative. Each character’s unique motivations and struggles are interwoven, creating a dynamic portrayal of the surfing world. The series emphasizes the camaraderie and rivalries that develop among the surfers, as well as the personal growth they experience through their shared passion for the sport.

The plot progresses through a series of competitions and training sessions, showcasing the technical and physical aspects of surfing while also exploring the emotional and psychological challenges faced by the characters. Themes of teamwork, self-discovery, and the pursuit of excellence are consistently present, making the series both an engaging sports anime and a character-driven drama.