Hatori Uta♀

Hajime's classmate and a member of the handicrafts club. She is a close friend of Hikari and they often do things together. Hikari calls her "Uu-chan". She is an ojou-sama from a respectable family but for better or for worse she does things at her own pace. She handles things flawlessly with excellent results, but physical activity is her weak point. She has a deep knowledge of music. Since she was a child she learned the violin and nearly everyday she practices and has lessons. She has good style and is the target of envy of the other club members. Like Hikari, she is in love with Hajime. But since she is aware of Hikari's feelings for him, she can't express her desire.

[Based on Wikipedia]