User blog comment:B214/Light Novel Volume 16 spoilers/@comment-5185939-20131020023649/@comment-16281343-20131021064812

Yeah. Just like what happened to Yuuto.. where the spirits of the dragons that was sacrificed by Euclid to use the artificial BG will help Ise.

And with that, that will align to what Azazel said which B214 pointed out.