I'm a shy girl who is in the light music club and plays a left-handed, 3-Color Sunburst Fender Jazz Bass with a tortoiseshell pickguard, though is shown playing a Fender Precision Bass in the first manga volume. I originally intended to join the literary club, but is forced into the light music club by my childhood friend and the club's president/drummer, Ritsu. I get excellent grades in school, but is bad with listening to stories involving macabre experiences, and cowers whenever something gross is brought up. While I can be mature and strict sometimes, I gets embarrassed easily, and is often subject to teasing from Ritsu and Sawako, Our club adviser. I cite that I chose bass since it is not the center of attention in the band, unlike the guitarist. I'm more technical when it comes to music, and Yui often comes to her when she is in need of more guitar tutorials.

I'm the band's backing vocalist and usually takes over lead vocals whenever Yui is incapable of singing or forgets the lyrics. I write most of the songs, although they usually feature some odd and overly girlish lyrics like "Light and Fluffy Time". As I'm left-handed, I become entranced whenever I see left-handed instruments. Due to an unexpected accident in one of their live performances (and partly due to my attractive appearances), I acquired a huge amount of popularity, and even a fan club for her is formed (much to my dismay considering the circumstances surrounding it), whose founding member is the former student council president who also stalks me. Due to this, most of my classmates voted me to play as Romeo in their class play. I'm seemingly a fan of Lomography, as I'm often seen with a camera strongly resembling the Lomo LC-A during my summer training.