Talk:Sophia/@comment-27409381-20180619214729/@comment-33499285-20180620131202

 All monster species were created by the System.

So if the system can create original vampires from nothing, it can of course also create a new original vampire later on, without having to care for genetics.

What that means simply is that everyone that gains the Vampire title becomes a vampire and everyone that gains the true ancestor title becomes a true ancestor.

Of course usually you would not get this titles in ways different than the normal vampire ones, but when D reincarnated the classmates she gave each of them the race and a skill well suited for them. In case of Sophia that was Vampire and True Ancestor, which is how she got them despite it normally not being possible.