
No ITS not incest the mom make wish to have son and Jhon born ,which is make he demon his self and share no blood w Annete . The only one who know the truth is the maid who slept w their Lil bro .
The story' kinda sad for me idk why maybe cus Annete and jhon known as twin and Jhon ia tge heir , their love is hard to be true or to be accept for other .
And the story' migh trigger u cus women get treated like toy here (except Jhon he really treat Annete well , even kill Annette hubands id bad tho but still-)

Yes it the demon placed into her womb , but not taking her egg . When he and Annete born as i remember he is pitchblack (his true form) but then take Annete appreance (cus ppl known them as twin) . I think the things that annet mom bring is it part of body . One body part mean 1 wish or sum.
If it real i mean they share blood then her mom need to be breed so they can share the same blood (even if it half .

Not taking her egg? How did you know that?! I read the Ch. 32 onwards and there's no statement saying that John placed into her womb. Also the Duchess said "I gave birth to a devil". He is not a pitch black, he looks like a baby black dragon with a devil horn.
The mother didn't bring any part of the body. Inside of those coffin is the body part of the devil if I remember when Anette open the last coffin she saw a wing. (Correct me if I'm wrong)
I've read until chap 5, it is worth reading..?
It is kind of not my cup of tea, cause what I saw it was between sibling..and
Should I stop reading?? I'm just asking for ur opinion