User blog comment:SpookyBoogie27/Light Novel Spoilers/@comment-71.190.146.213-20140207022346/@comment-16281343-20140207043746

Basically, what was revealed in the earlier Volumes is that : That led to the conclusion that GR > Ophis.
 * Ophis wants to defeat/ kill Great Red
 * Ophis founded KB to help her defeat GR.

Although in Volume 16, new information are given with regards to Ophis and the Khaos Brigade, just like what B said.