Gotoh Hitori, also known as Bocchi, is a 15-year-old high school student with a deep passion for music. Despite her immense talent as a guitarist and songwriter, she struggles with severe social anxiety and has a hard time connecting with others. Hitori often feels like an outsider, which leads her to isolate herself. However, her desire to overcome her fears and make meaningful connections drives her journey in the series. She navigates the challenges of adolescence while trying to find her place in the world of music, showcasing her growth and resilience throughout the story.