Kanade Oe is a first-year student at Mizusawa High School and a key member of the school's competitive karuta club. She comes from a family that runs a traditional Japanese clothing store, an upbringing that has instilled in her a deep appreciation for Japan's cultural heritage, particularly its classical literature and garments. This background is the defining lens through which she views the world and the game of karuta.

In terms of personality, Kanade is an energetic, determined, and outspoken young woman who is unapologetic about her passions, even when they are considered old-fashioned by her peers. She has been teased for her love of classics and told she was born in the wrong era, but this does not deter her. Her deep-seated love for traditional culture is genuine, not performative. She can become visibly annoyed when others treat classical poetry with disrespect or play karuta as a purely mechanical sport without understanding the meaning and history behind the poems. While she is generally optimistic and friendly, she possesses a strong-willed and principled side that guides her actions.

Kanade’s primary motivation for joining the karuta club is unique compared to other members. Initially, she joined the archery club only because its uniform includes the hakama, a traditional garment she adores. Her initial reluctance to join the karuta club stems from her perception of competitive karuta as a fierce, athletic pursuit that disregards the elegance and spirit of the original Hyakunin Isshu poetry anthology. Her condition for joining Chihaya and Taichi's newly-formed club is that all members must wear hakama during official matches. More profoundly, she joins because she loves the poems themselves. For her, the hundred poems are not merely a set of cards to be memorized by their first syllables but living pieces of Japanese history, each with its own romantic backstory, emotional nuance, and subtle interpretation. She is driven by a desire to connect with and preserve this cultural legacy, and ultimately aims to become a card reader for the prestigious Queen matches, a role that requires reciting the poems.

Kanade's role in the story is multifaceted. She becomes a crucial philosophical anchor for the Mizusawa Karuta Club. While Chihaya represents physical talent and raw passion, and Taichi represents strategy and intellect, Kanade embodies the soul of karuta. She is the one who teaches her teammates that a deep knowledge of the poems themselves is a legitimate and powerful path to improving at the game. She helps Chihaya, in particular, to "become friends with the cards" by explaining the deeper meanings behind the poems, including the romantic subtext of the "Chihayafuru" poem that Chihaya had interpreted literally. This perspective transforms the team's understanding of the sport and enriches their practice. As the club grows, she takes on a responsible role in mentoring and educating new, often reluctant, members, trying to foster in them a genuine respect for the poems and the game's traditions.

Her key relationships solidify the club's core dynamic. She shares a close friendship with Chihaya Ayase, who respects and values Kanade's knowledge and successfully persuades her to join the club by agreeing to her hakama condition and modeling for her family's kimono shop. She often serves as a contrast to Taichi Mashima, whose analytical and competitive approach to karuta initially clashes with her more romantic, tradition-based philosophy. Over time, they learn to appreciate each other’s strengths. She also interacts frequently with the other club members like Nishida and Komano, and becomes an important figure for new recruits like Sumire Hanano, whom she counsels on discipline and the enduring nature of passionate commitment.

Over the course of Chihayafuru 2, Kanade demonstrates significant development. While she begins as someone who loves karuta from an academic and aesthetic distance, she becomes a fully-fledged competitor. She does not reject the competitive aspect of the sport but instead integrates it with her love for poetry, proving that one can be a passionate player and a scholar of the art form simultaneously. Her presence helps mature the team, shifting the club's identity from a small group of friends into a serious, cohesive unit with a shared respect for the game's foundations. She grows from a reluctant outsider who avoided competition to a dedicated club member who takes responsibility for its future members and aims for her own high rank within the sport, striving to achieve Class A so she can fulfill her dream of becoming a reader.

Regarding her notable abilities, Kanade's greatest strength lies not in her athletic speed but in her deep and scholarly knowledge of the Hyakunin Isshu. She has memorized not just the order of the cards, but the historical context, narrative, and emotional weight of each poem. This allows her to build a unique mental and emotional connection to the cards, a connection that often gives her an intuitive edge in matches. She is also the club's primary voice of tradition, ensuring that the team honors the cultural roots of the sport and wears proper attire. Her deep, sincere, and disciplined approach to the game makes her a stabilizing influence who grounds the club's high ambitions in genuine respect for the past.