Board Thread:Speculation House/@comment-26397825-20150518072144/@comment-26397825-20150613011815

Scarlet and Sage could be the foil of any of the RWBY girls, as you said, because we don't know much about them yet.

That being said, they could be another foil a la JNPR without any romantic interest.

Another point is Neptune could also be the foil of Yang. He tries super hard to be 'cool' and in control and suave and tough, but when put next to Yang - who does all that simply by being herself - he looks like someone who's just trying too hard (take the scene in the bar when he asks Junior "But where did they go?" It's a stupid question, and he only asked because he felt like he had to contribute, whereas Yang asks all the right questions without even trying). Yang is everything that Neptune shows himself to be - cool, strong, good to look at, flirty, the 'Awesome' one. But where Yang is just that naturally, Neptune has to try really hard to be like that.