Time to get into Blake's side of things. Enjoy!
Blake was never one for uncertainties, they never bode well for someone in her position. If someone managed to get the upper hand on you it was over. No one survived an attack they weren't expecting, not unless it happened within the sanctioned rounds of a tournament.
However, Beacon was the epitome of uncertainty, even more so for someone like her. She almost wondered how she had managed to make it so far, but then again, she had handled much worst before. As of now, she wasn't sure whether or not her teammates would become one of those situations.
Blake could admit, the pair of sisters she was with were definitely interesting. They were a conundrum of personality traits and features. It wouldn't take anyone long enough to find that out though; that was, if anyone could guess that those two were sisters at all.
So, ending up on a team with both was a blessing and a curse. She could satisfy her curiosity about them, but she would also have to deal with Yang's overfriendly nature and Weiss in general. Not like she was upset with Yang's nature, but it was a little overwhelming for her. She was just a little too used to solitude, she supposed.
And as much as Yang liked to get in her face with excitement, Ruby would stay silent, a peaceful smile plastered across her face as she watched from a distance. Well, not always a literal distance. There was something about Ruby that reminded Blake of herself. Silence was a barrier, a wall of separation, a cocoon to wrap yourself in so you don't get hurt by the people around you. Except, Blake couldn't possibly see what Ruby could have gone through to get the same mindset. Whatever had happened, Yang was sure to have gone through it as well, but the effects couldn't have been more different.
Blake was sure she could figure it out given time, and that was something she was going to have a lot of at Beacon. Four years to change herself for the better, and four years to hide her faunus heritage.
She was confident that Ruby and Yang would accept her, but Weiss? As if. The girl probably had racism engrained in her mind since she could walk. She probably wouldn't even accept a faunus, let alone on that used to be involved with the White Fang.
Blake could argue and plead her change of heart and value until her voice was hoarse, but none of it would go through the Schnee's prejudiced ears. And what if Yang and Ruby didn't believe her? It wasn't assured, and if it went wrong she would end up being driven away by the first people she had met outside the White Fang in years.
Blake was used to hiding though, she could pull this off. Just keep her animalistic tendencies under control and her bow nice and snug. She could do this. And maybe, just maybe, the day would come where she could reveal herself without fear of persecution. But she was never one to believe in ideals.