Look at you piecing together all the pieces for us common folk . Thank you very much. (I hope this doesn’t come off as sarcasm because it isn’t.
It makes since that he is a bastard child but wouldn’t that also mean that the prince will recognize him as well? I bet something with happen to Kain and the prince leading to Priscilla to choose a side.
I dont think so, as he himself said, he has family but has never seen them. So after he was born and made a vessel he was likely keet either locked up or as a hidden existence from all but his father. Also the woman who is at a monestary could be his mother or one of the ppl that was a caretaber to him.
It seems Kian/Cain is a bastard child of the imperial family... most likely born for the sole purpose of being a conduit / vesil for all the grudge the imperial family has raised for generations such as a family curse.. He was likely used as a vesel to remove it from the main family.. and the curse is that ppl cant remember him.. no mater what,...anyone he cares about forgets him.. + corrupt power in the form of magic..
So the sister is prob hoping to have him become a candidate for the crown.. to dethrone her brother.. by using Fl.. but just realized that Ml is someone not to mess with..