[@The Muse] What is the current ruling on multiple characters/NPC's attached to a character because as of right now I do wanna stick with one character but with the one I have in mind there is a specific NPC/PC that I have that usually accompanies the character.

IE in order to make this less confusing they are twins who are college age and usually whenever I play one I try and have the other be around and they tend to be at the same university so was thinking of doing that. But as of right now I was just wanting to directly play one and NPC the other. Not fully sure right now though so wanted your input.