Hirasawa, Ui

平沢憂

Ui is Yui's younger sister. At the start of the story, she is a third-year junior high school student, but the following year she enters Yui's high school in the same class as Azusa. Unlike her older sister, Ui is mature, responsible, and handles household chores well, although she maintains a strong bond with Yui and holds her in high regard. Despite being a year younger, she looks nearly identical to Yui with her hair down and once even manages to fool the club. She shares some of her sister's musical talent and shows great skill on the guitar; she becomes able to play with the rest of the light music club band after only a few days of practice (Yui was sick, so Ui dressed up as Yui to help the band out). She takes particularly good care of Yui and strives to look after her, even at the risk of her own health. Ui is actually considered the ultimate groupie for her sister's band and supports them with all her heart. She occasionally provides narration to the story. She is in the same class as Azusa and hangs out with her sometimes.