I'm just gonna pretend they aren't blood related at all.
Yea I saw a spoiler a while ago...I barely remember any of the details but it has something to do with her mother. But basically, the Johannes we see now is a replacement for the real one. Do you remember the scene where they were kissing and the mom got mad? By then the demon had took her twin brother's place.










I'm about to shove a shovel down a bitches throat *Rolls up sleeves*