Board Thread:Questions and Answers/@comment-4616791-20121208020327/@comment-5432668-20121208020658

I'm sure that the extra Shinshou could be the foreshadow boss and the only one that are not yet appear in the further chapters. Tsukuyo did mention that the Six Shou including one more Shinshou have a demon mark.

What ironic is that none of the 11 Shinshou never even mention the myserious Shinshou who happen to not appear at the meeting with the exception of the up coming new Himeou ceremony. The only time it was mention is "the 7 other Shinshou".