Responses
Spoiler warning
They can't have kids cause Winter can't have kids cause of his bloodline. Since Violet is pureblooded and not mixed, it's nearly impossible for her to get pregnant with Winter's child. (In the manwha it said that it's impossible but at the end of the novel they have kids so (づ ̄ ³ ̄)づ ) )The doctor is feeding her medicine to make her have phantom pregnancy.
So why exactly can they not have children. Like it seems that winter isn't infertile but I might be wrong. Is the medicine that violet is taking, making it so she can no longer have children or just give her symptoms of pregnancy?