Board Thread:Questions and Answers/@comment-29781768-20170925090542/@comment-173.2.202.6-20200628212011

Priscilla probably is not a sin archbishop but might have gained the witch factor for pride when her relative Stride Vollachia died. Stride's former affiliation with the witch cult is probably how she got to know what she knows about the witch cult. So in summary, she's a person like Subaru who has a witch factor but does not work with the witch cult.