TV-Series
Description
Ayako Hīragi is the older cousin of the protagonist, Takahiro Mizuno, and serves as a supporting character in Walkure Romanze. She is the school physician at Winford Academy, a position that allows her to care for the health and well-being of the students, many of whom are knights-in-training. In addition to her medical duties, Ayako is the owner and operator of a café called Tart Time, where several of the main heroines, including Mio Kisaki and Noel Marres Ascot, work as part-time staff. The café also functions as a living space for both Ayako and her cousin Takahiro, making her his guardian and housemate.

Ayako has a warm, caring, and somewhat playful personality. She is well-liked by the students for her kind and approachable nature, and she retains a childlike heart that makes her easy to relate to. She is particularly fond of teasing Takahiro and Mio, which reflects her close and familiar relationship with them. Despite her lighthearted side, she is a hard-working individual who manages both her medical career and the café.

Her past is notable; Ayako used to be a knight herself before becoming a school nurse. This background gives her a deep understanding of the world of jousting that is central to the academy. She is a protective figure in Takahiro's life and was the one who persuaded him to study abroad at Winford Academy. While she personally hopes that he will overcome his past trauma and return to the path of a knight, her approach is one of gentle encouragement rather than pressure.

In the story, Ayako provides a stable home base for the other characters, with Tart Time serving as a common gathering place. Her key relationships are primarily with her cousin Takahiro, whose well-being and future are of great concern to her, and with her employees, Mio and Noel, who she has dress in maid uniforms for the café simply because she likes cute things. In alternative routes of the source material, her character is further explored, where she takes on a more prominent role and actively encourages Takahiro to become a knight again, deepening their relationship beyond that of cousins. Her notable abilities include her skills as a former knight, specifically in riding and jousting, as well as her professional medical knowledge. She also enjoys cooking and managing her café.