Board Thread:Questions and Answers/@comment-8959286-20130927152419/@comment-26168276-20140207103905

Hazama said to Noel something about her brothers and sisters in CS. So, maybe, there was some male units.

And, how it was stated in this thread before, one of Ragna's belts has -NO.5- Es written on it. Es is short for Embryo Storage, and there is also -NO.5- mark on Ragna's neck.