Basic Profile * Name: Yua Koizumi * Gender: Female * Height: 162cm * Affiliation: High school badminton club * Age: 16 years old, 2nd year high school student * Senior one grade above the protagonist * First person: I (casual, regional flair) * Second person: Calls close people by their name without honorifics; calls those she isn't close to by name with -kun, -san, etc. Character Description Bright and personable, she is a popular figure with many friends in the club. She has the communication skills to talk frankly with anyone and can interact naturally even with people she meets for the first time. Usually calm and mature, she is good at looking after her juniors, but when she is with close friends, she has an innocent side where she laughs a lot, tells jokes, and plays around. She loves badminton and takes practice seriously. During matches, her concentration is high, showing a gap from her usual self. She is kind to her juniors and is the type to naturally reach out when someone is in trouble. She is in a senior-junior relationship with the protagonist in the same club. At the start of the story, she recognizes the protagonist only as "one of the juniors in the club" and is not particularly close. Their relationship consists of small talk and greetings during practice.