Mio is a shy girl, and is the bassist for the light music club. She plays a left-handed, 3-Color Sunburst Fender Jazz Bass with a tortoiseshell pickguard. She uses D’Addario EXL 160M medium bass strings. Yui, later on in the anime, nicknames her bass ‘Elizabeth’. Initially she intended to join the literary club, but was forced into the light music club by childhood friend Ritsu. She gets excellent grades in school and is often very mature and strict, especially when Ritsu is involved. However, she is easily grossed out by ghosts, blood, injuries, barnacles, etc. She also has a fear of being in the spotlight and gets embarrassed easily, the reason why she did not play the guitar and took up bass instead. She cites that she chose the bass because it is not the center of attention in the band, unlike the guitarist. She is more technical when it comes to music, and Yui often comes to her for guitar tutorials. She is also one of the band’s main vocalists.