Responses

Unlikely since the mamwha explain that Jennette is product of dark magic created by Claude’s older brother specifically by Athy who’s aware of story and its secrets. Beside, Claude knew from the book that Jennette WAS NOT his true daughter but still treat her as such anyways compare how he treat horribly to Athy who was his true daughter.
I’m sure Claude never have sex with Penelope(Jennette’s mother) since he was hoping too when they get married till he found out about the affair which mess things up.
So I guess Dark Claude is obviously the father of Jennette and wants Claude to recognized Jennette as his “true” daughter such so he can give a big “Fuck you” at Claude for discarding him in his line of ascension.
Yet if Claude realized Jennette true parentage, I’m sure there will be no mercy on her and will probably fulfill the dark curse.
Gosh I love this manwha so much that I hope some semblance of good happen to Claude, Jennette, and Athy.