Fuyune Kamikura is a student at Minami Kamakura High School and one of the core members of the school’s newly formed cycling club. She comes from a wealthy, high-class family and is recognized as the granddaughter of Ryuko Kamikura, the school’s principal. Her name incorporates the Japanese word for winter, fuyu, which follows the seasonal theme present in the names of the main characters.

Physically, Fuyune is a girl of average height for her age, with black eyes and straight, shoulder-length black hair. Her demeanor often reflects a refined and proper upbringing, embodying the archetype of a young lady or ojousama. However, she is not distant or haughty; rather, she possesses a kind, sociable, and somewhat naive personality. Fuyune is characterized by a fearless and curious nature, showing little hesitation in exploring new activities or expressing her thoughts. Despite her privileged background, her voice actor has noted that she treats everyone as an equal, with a friendly and down-to-earth attitude that prevents her from feeling unapproachable.

The catalyst for Fuyune's central role in the story stems from a moment of personal difficulty and discovery. After an initial group bicycle ride, her lack of experience leads to significant muscle soreness, landing her in the school nurse's office. It is there that her classmates Hiromi and Tomoe find her. This incident leads to a visit to her grandmother’s residence, a house that holds memories of a cycling club from Ryuko’s own youth. Inspired by this connection, Fuyune expresses a strong desire to revive the club at Minami Kamakura High, and she becomes a founding member of the new girls' cycling club alongside Hiromi, Tomoe, and Natsumi.

Fuyune's motivations are deeply intertwined with her family. An important factor in her enthusiasm for cycling and her hobby of photography is her older sister, who is unwell. Fuyune takes photographs of various landscapes and scenes during her rides with the intention of sharing these images and experiences with her sister. This gives her activities a heartfelt, personal purpose beyond simple recreation or competition.

Within the group dynamic, Fuyune often serves as a contrast to the more athletic members. Her physical condition is noted as being more fragile, particularly compared to the energetic Natsumi, leading to moments of comic relief or concern when she overexerts herself. Yet, her sociable and unafraid personality makes her a key participant in the group's adventures. Her relationship with the school principal is also significant, as her grandmother becomes a supporter of the revived club, offering guidance and encouragement drawn from her own youthful experiences.

Over the course of the series, Fuyune develops from a complete novice who ends up in the nurse's office after a short ride into a more resilient and passionate cyclist. While she may never lose her more delicate constitution, her character arc focuses on her growing enjoyment of the sport and the camaraderie it brings. Her notable abilities lie not in raw athletic prowess but in her photography skills, which she actively practices during club outings, and her strong, forward-looking personality. As described by her voice actor, she sings with a strong tone rather than a bright, pretty one, reflecting a core aspect of Fuyune's character: a well-bred young lady with a surprisingly robust and determined spirit.