Gakusei Shoujo

is a Japanese light novel series written by Hikaru Sugii, with illustrations by Mel Kishida. The series began publication on May 10, 2012 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
During the summer vacation of my second year of high school, I was taken to a strange world by a strange woman who called herself Mephistopheles.

It's supposed to be Vienna, the city of music 200 years ago ... but it's a different world where telephones, tanks, airships, and monsters fly around !? As a result, I was forced to write on behalf of the great writer Goethe, and while looking for a way to return to modern Japan, I met a girl.

Her amazing name as a rare genius musician is ── the dazzling gothic fantasy where magic and music are mixed, opening!