User blog comment:B214/Light Novel Volume 16 spoilers/@comment-16281343-20131019145333/@comment-1359322-20131019151213

Cause we're not sure how Rizevim is going to enter the Realm of the Chichigami, using some demonic spells to increase the breast size, or finding some spells involving breast, too unimaginable to talk about.

As to Great Red and Chichigami, not sure at all, if it's true then i'll be laughing for sure, and i'm pretty sure many Dragons will cry, Great Red who is called the True Dragon and Dragon of Dragons being related to breast.