The end goal is Medusa since she's the leader of the Bloodrose Coven. Bond with your partners as you make your way to the castle though you can wander about to various places. But eventually you will all be led to the castle, as I have a special plan for the fellow sisters that I'll reveal later on! >;3
Also no doubt others will be interacting with your characters so no, you will not just be interacting with your pairs. For now go ahead and bond but eventually I will be bringing everyone together for one of many special GM events! Essentially a time to mingle, party, and just have fun with everyone together! If you need an example I did a Transylvanian style party in a different RP on a different account on here as a GM event and on a different account on a different website I did different themed parties that were all about everyone getting together before everyone goes off to do whatever they were doing again! It's essentially just breaking the barriers down between witches and hunters, or at least trying to.