Hope she can play the guitar as well. I-No from the Guilty Gear anime.

One of That Man’s servants and apparently a time-traveler, I-No appears in the postwar era approximately two weeks after the events of Guilty Gear X. She attacks Dizzy and sets the various fighters of the era against each other, seeking to help That Man’s still-unrevealed plans. She fights with an electric guitar, both using it as a bludgeon and playing it to create deadly sonic waves. She also wears a stereotypical pointed witch’s hat that can fire projectiles out of a hidden “mouth.” She is the primary antagonist and boss character of Guilty Gear XX

This girl showed up at the Tokyo Game Show 2006. Nice looking girl in a perfect suit of Cosplay costume. Although she didn’t look comfortable in that way, the overall performance was totally awesome!