Having seen a friend in something like this, I recommend not to get into this for foll reasons -
You are new to the city -it is hectic and scary to get into something this complicated
Trust your gut instinct - if you are scared then there is a reason
If you're into her then you can continue meeting her and then proceed with how it goes but ONLY HER. Not her partners.
Set your boundaries straight.
This is a messy situation because many at times people don't know what they want themselves.
In that scenario, they will gang up on you.