User blog comment:SpookyBoogie27/Light Novel Spoilers/@comment-24098614-20131222052756

I will say this because it is my opinion Volume 17 will be a chapter that could officiall welcome Rossweisse as a member of Issei's Harem, and I am actually very interested in her because of what he comes from because she hails from the Norse Gods because I am huge fan of those guys because they are badasses compared to the pathetic Greek Gods. I especially loved the chapter that Odin and her were introduced because Norse Mythology is among my favorites as stories goes.