TV-Series
Description
Miyuki Iijima is a second-year student at Uzuki Academy in the anime Kakyūsei. She is a member of the track-and-field club and is regarded as one of the top runners at the school. Her birthday is July 8, she stands 157 centimeters tall, has green hair and blue eyes, and her blood type is O.

In terms of personality, Miyuki is described as direct, somewhat tomboyish, and quick to show her temper. She presents a no-nonsense attitude, particularly toward the protagonist, Tsuyoshi Yamaguchi, whom she initially distrusts and treats with open hostility. Despite this rough exterior, she is extremely loyal to her close friend Ai Minamizato and takes on a protective, almost overbearing role in Ai's life. Her initial motivation is to shield Ai from any perceived threat, especially romantic advances from Tsuyoshi. As the story progresses, however, Miyuki develops her own romantic feelings for Tsuyoshi, which creates a deep internal conflict between her loyalty to Ai and her emerging emotions. This struggle marks a central part of her character development in the TV series.

Miyuki's role in the story varies between adaptations. In the original 1998 OVA, she serves primarily as a sidekick who encourages Ai in her pursuit of another male character, Tōru. In the 1999 television series, she is a more prominent supporting character who initially antagonizes Tsuyoshi but gradually falls in love with him, leading to a dramatic confrontation in which she chooses her romantic feelings over her friendship with Ai. This progression from cold hostility to emotional vulnerability is considered an early example of the tsundere archetype in dating-sim media.

Her key relationships include her best friend, Ai Minamizato, and the protagonist, Tsuyoshi. Her bond with Ai is the most defining relationship in her life, and her internal conflict over Tsuyoshi forces her to confront the limits of that friendship. She also interacts with other classmates, but her story arc is largely centered on these two individuals.

Among her notable abilities, Miyuki is an accomplished athlete, specifically a strong runner. Her physical fitness and competitive spirit are consistent traits that influence how she approaches problems and interacts with others. She lacks finesse in romantic matters and is often described as clumsy or awkward when dealing with her own emotions. Over time, she becomes more open and learns to accept her vulnerabilities, though her forthright nature remains a core aspect of her character.