She is a third-year high school student and the main vocalist for the band Laureley.
SpoilerFrom the very beginning of Shiho's introduction, her relationship with Aki had been that of tension, hostility and seemingly competitiveness. There was a visible dislike for one another which stemmed from their past in SS Girls, wherein Shiho left the band after she thought their abilities were not up to her's or her standards; though it's revealed it had to do with her unrequited crush on Aki, who seemed to have feelings for Yori at the time.