Board Thread:Speculation House/@comment-3257939-20131111020445/@comment-18396318-20131113044331

98.192.147.242 wrote: Hmm. Has anyone thought about how both have completely different parents, but the parents devorce (or, in Summer Roses case, a spouse dies) and end up marrying somebody else? It would encompass pretty much all the supposed ideas, true or otherwise.

That's what step sisters are. Which Ruby and Yang are not.