As it says on the tin, I'd like to get some more on Vincent's backstory.

I put this up a while ago but didn't add any details. All Vincent current knows is that his sister was Nerissa Cargan and that she died protecting him. As much as he resents being a Cargan he has a certain guilt over this person who he can't even remember having died for him and wants to reconcile this by finding out who she was. Basically I'm just looking to get plot and I'm happy for this to be combined with other requests.