"Hibi Rock" centers on Hibi Rock, a high school student with an unrelenting passion for rock music. Despite his lack of talent, Hibi dreams of becoming a rock star and forming a band that will revolutionize the music scene. His enthusiasm often leads to comedic and chaotic situations, as he frequently clashes with societal norms and authority figures. Hibi’s determination is fueled by his idolization of legendary rock musicians, and he constantly seeks opportunities to perform, even if it means disrupting school events or public spaces.

The narrative explores Hibi’s interactions with his classmates, particularly his attempts to recruit members for his band. His relentless energy and unconventional behavior often alienate others, but his genuine passion occasionally inspires those around him. Key characters include Hibi’s childhood friend, Yūka, who often serves as a voice of reason, and the stoic guitarist, Kurokawa, who becomes an unexpected ally. The dynamics between these characters highlight themes of friendship, perseverance, and the pursuit of individuality.

As the story progresses, Hibi faces numerous challenges, including rival bands, societal expectations, and his own limitations. His journey is marked by both failures and small victories, showcasing his growth as a musician and as a person. The series balances humor with moments of introspection, offering a lighthearted yet meaningful exploration of youth, ambition, and the transformative power of music. Through its energetic protagonist and engaging narrative, "Hibi Rock" captures the spirit of rebellion and creativity inherent in rock culture.