Aoi Takizawa is a supporting character in the anime Tsukigakirei. She is a third-year student in class 3-3 and a member of her school's track and field club, where her specialty is the long jump. Alongside her close friends Akane Mizuno and Chinatsu Nishio, the three girls form a well-known trio of veteran seniors within the club.

Personality-wise, Aoi is characterized by her stoic and disciplined nature. Having devoted all her energy to the track and field club for three years, she has cultivated a focused and diligent way of life that is highly admired by her junior female students. Despite this popularity, she has little to no interest in romance and, in fact, harbors a strong dislike toward boys. Within her friend group, she is often the one who makes witty retorts, balancing the more cheerful and innocent personality of Chinatsu.

Aoi's primary role in the story is as a key friend to the protagonist, Akane Mizuno. She is part of the trio that includes Akane and Chinatsu, and their dynamic forms a significant part of the social landscape at school. Her motivations are driven by her commitment to athletics and her loyalty to her friends, rather than by the romantic interests that preoccupy other characters. Her development is not the central focus of the narrative, but her strong, focused personality serves as a point of stability within the social circle. Her notable ability is her skill in the long jump, and her disciplined reputation makes her a respected figure among the younger students in the track and field club.