"La Corda D'Oro - primo passo" is a 25-episode anime series based on the visual novel "Kiniro no Corda" by Koei. The story is set at Seiso Academy, a prestigious school known for its music program. The narrative centers on Kahoko Hino, a second-year general education student who unexpectedly becomes involved in the school's annual music competition after encountering a magical violin and its fairy, Lili. The competition, traditionally reserved for students from the music department, pits participants against each other in a series of performances judged by their peers and faculty.

Kahoko, initially inexperienced in playing the violin, relies on Lili's magical assistance to produce music. As the competition progresses, she begins to develop genuine skill and a deeper appreciation for music. Her participation brings her into contact with a diverse group of talented musicians, each with their own distinct personalities and struggles. These include Len Tsukimori, a disciplined and aloof violinist; Ryotaro Tsuchiura, a passionate pianist who left the music department; Kazuki Hihara, a cheerful and outgoing trumpet player; Azuma Yunoki, a charming and enigmatic flute player; and Shinobu Ousaki, a reserved and introspective cellist.

The series explores themes of personal growth, perseverance, and the transformative power of music. Kahoko's journey is marked by her efforts to balance her newfound passion for music with her academic responsibilities, as well as her interactions with the other competitors. The relationships between the characters evolve through shared performances, rivalries, and moments of mutual support, highlighting the collaborative and competitive aspects of the music world.

As the competition unfolds, the characters face challenges that test their dedication and resolve. Kahoko's determination to improve without relying solely on magic becomes a central focus, symbolizing her transition from an outsider to a genuine participant in the musical community. The series concludes with the final performances of the competition, leaving the outcomes open-ended but emphasizing the personal growth and connections forged by the characters throughout the process.