Aki Mikage is a first-year student in the Department of Dairy Science at Yezo Agricultural High School and an active member of the Equestrian Club. She is the only child of the Mikage family, which has operated a farm in the Hokkaido countryside for over four generations. Growing up on the farm, she learned the basics of farming and livestock care from a young age. Aki has a deep fascination and love for horses, having been part of an equestrian club in her town. She has short, purplish-black hair with a small ahoge on the right side and bangs hanging on the left, and wide eyes of the same purplish-black color. She is typically seen in the standard female school uniform, wears a jumpsuit for practical class sessions or farm work, and an English equestrian outfit when horseback riding.

Aki is kind and sincere but often described as a non-intellectual type. Her academic performance is notably poor, particularly in history, and she struggles to sense the emotions or intentions of those around her. This dense nature extends to her romantic life, as she is initially unaware that several boys are interested in her. However, when it comes to horses and horse-related subjects, she demonstrates great focus, aptitude, and talent, especially in horseback riding. She grew up speaking a local dialect and was once ashamed of it, making an effort to suppress it by the time she entered high school.

Her primary motivation is her love for horses and her desire to pursue a career related to them, which conflicts with her family’s expectation that she inherit the family farm. Initially resigned to this fate, a turning point occurs when a classmate helps her reveal her true feelings to her family. They reluctantly agree to support her dream of studying horses on the condition that she graduates from college. The classmate then promises to be her tutor until she gains admission to a specific agricultural college. Aki’s role in the story is central to the protagonist’s life, as she introduces him to the Equestrian Club and becomes a close friend. Over time, she realizes she has developed romantic feelings for him, a realization stemming from his support. Her father is very protective and wary of any boys getting close to her. Aki’s notable abilities include practical farming skills such as livestock care, processing chickens, making bacon, milk and cheese processing, and driving a truck, along with her prominent skill in horseback riding.