User blog comment:SpookyBoogie27/Light Novel Spoilers/@comment-33447191-20130118201121/@comment-33447191-20130127185343

Oh! By the way it is official! Ishibumi said that he is will be planning to do short stories in the future by having the sub-heroines take the spot light. The names he listed for the sub-heroines are Sona, Le Fay, and Kuroka!

Poor Saji...

- (Info. from Code-Zero/n0m@n or Shin Code-Zero)