User blog comment:SpookyBoogie27/Light Novel Spoilers/@comment-1359322-20130208085957

Ok this is something taken from the author's blog

さて、本編について.

４章が開幕しました！

あとがきで書いた通り、１６巻がギャスパー編で、１７巻からゼノヴィア、イリナ、ロスヴァイセにスポットを 当てていきたいと思います.

彼女たちのメイン回の順番はまだ秘密！

サブヒロインのほうは短編でメイン回を設けていこうと思っております.

グレイフィア→九重の流れだったので、今年はソーナや黒歌、ルフェイなどもやってみたいですね.

Now to the main part.

The fourth chapter has start!

Like what i wrote in the Afterword, Volume 16 focus on Gasper, starting from Volume 17 o would like to give the spotlight to Xenovia, Irina and Rossweisse.

The orders of the main girls is still a secret!

For the sub-heroine, i would like to put them as the main for short stories.

Since it was from the flow of Grayfia →Kunou, this year i would like to go with Sona, Kuroka and Le Fay.