Purpose.

''We Nephilim should work together, not fight a meaningless war.''

Hearing those words, the Valkyries found themselves struck with a great deal of confusion.

[What...] Miku was about to ask the obvious question, but she couldn't bring herself.

It's not that she didn't understand what the enemy had said; the problem was in her inability to accept what she had heard. Anyone with functioning eyes could see that the Valkyries and the Nephilim are connected in some way, the Doctor has proven that by replicating one of the enemy's weapons using the heart of a Valkyrie.

''Listen, there is a lot that you don't know so things must be confusing.'' The silver haired Nephilim spoke. ''But don't worry. Our queen understands your struggles and wishes to save you form the life of servitude you forced upon you.''

[Life of... servitude?]