Fine Cavendish is a character from the anime Once Upon a Witch's Death. She is a high school girl living in the town of Lapis, where the story primarily takes place. At sixteen years old, she is depicted as a strong and kind-hearted individual, known for her responsible and compassionate nature. Her appearance is noted as angelic, and she carries herself with a sweet and approachable demeanor.

Fine's most significant role in the story is as the best friend of the protagonist, Meg Raspberry. Their friendship is a long-standing one, having known each other for over a decade, which has forged a deep and trusting bond between them. As a friend, Fine often acts as the more sensible and grounding presence. She has a habit of gently teasing or playfully quipping back at Meg when she makes silly jokes, always doing so with a warm smile. However, her care extends far beyond friendly banter; she is highly perceptive and can instantly tell when something is troubling Meg, often being the first to notice a shift in her mood. Fine positions herself as a reliable confidante, always ready to listen and offer a safe space for Meg to share her worries.

Within the narrative, Fine's primary function is to serve as an anchor to Meg's normal life, especially as Meg is forced to confront a death curse and travel the world. Fine represents the cherished, everyday world that Meg is fighting to protect. Her loyalty is unwavering, and she consistently prioritizes Meg's emotional well-being above all else. This is most clearly demonstrated in the seventh chapter of the first light novel volume. At this point in the story, Fine observes a troubling change in Meg, noticing that she has begun to collect tears of joy in a detached, indifferent manner. Recognizing that this callousness is out of character and harmful to her friend's spirit, Fine does not hesitate to confront her. She offers a sincere warning, urging Meg to reflect on her actions and not lose touch with her genuine feelings.

Fine shares significant relationships with a couple of other characters. Her primary and most developed relationship is, of course, with Meg Raspberry. The story often highlights their long history, the ease with which they communicate, and the depth of their mutual trust. For instance, Fine is one of the few people who can see past Meg's cheerful exterior. She also has a running inside joke with Meg, in which she insists on being compared to a melon rather than a banana, a small detail that adds flavor to their interactions. While the central narrative focuses on Meg's journey with her witch teacher Faust and the talking cat Carbuncle, Fine remains an important figure in Meg's personal life, representing the friend she left behind in Lapis.

Throughout the story, Fine Cavendish does not undergo a dramatic character arc herself, as the primary development is reserved for Meg. However, her role is crucial to Meg's development. By acting as a moral compass and a source of unwavering support, she provides Meg with a stable foundation. Her warning at a critical moment serves as a catalyst for Meg to reexamine her methods and motivations. Fine's steadfastness is a character trait in itself; she is the constant, reliable friend who remains true to her values of empathy and genuine connection.

As a normal high school girl living in a town of witches, Fine does not possess any magical abilities or combat skills. Her notable abilities are entirely non-magical and rooted in her personality. She has a high degree of emotional intelligence, allowing her to be perceptive and empathetic. Her greatest strength is her ability to be a good friend: she is an excellent listener, a thoughtful advisor, and a source of gentle but firm guidance. Her power lies in her steadfast loyalty and her capacity to offer heartfelt counsel, proving that in a world of magic, human connection and kindness are equally powerful forces.