User blog comment:Lauren Darkmore/The RWBY AMA on Monty's twitter/@comment-16502426-20131113040316

Wait just a minute...

- Let's assume for now that Ruby and Yang aren't full sisters (different names).

- They aren't step-sisters.

- Niether is adopted.

So logically, they're half-sisters, right? But Yang is older? There goes the theory of Ruby's mom dying and then Ruby getting Yang as a sister. So it appears Ruby has had Yang as an older sister for her entire life. Whatever tragedy Ruby experienced, Yang went through too.

Also, what happened to Yang's other parent? If they have the same naming traditions, that means that this situation dictates that Yang's father was the one who left/died (if he had been the common parent, ruby would share Yang's name, wouldn't she?). So that means that Ruby and Yang had the same mother, much speculated to be Summer Rose...

Which just seems odd for some reason.

So I think this kind of shakes the entire understanding of the situation. The options are now:


 * Ruby and Yang are half-sisters, sharing a mother. This person may or may not be Summer Rose.

and/or


 * Remnant has some very different naming conventions.