Not sure I could do two characters a vampire and a mortal that don't know each other but it might get complicated for me.<br/><br/>The only concepts that work all day and night would be the Immortal and the Hunter Financier. Immortals aren't able to be fed on by vampires and all so she is no buffet for them plus they must get past her empowered weapon that does grievous wounds to such foes.<br/><br/>For her she likely could only play at night and that is the problem with these sorts of games too many different kinds of supernatural. If I can find a merit that lets her sleep half as long she could operate part of the day if she stays out of the sun maybe she can hold up in someplace so she can socialize but not bake? But you have to assume a player with a vampire will not do much otherwise in your game.