
Is the Duke married??? He has a son????

No worries. It is possible though. Thoroughout history there are examples of some King/Emperors being figure head. Also, the background hasn't been mentioned here in summary. The thing is the prince's father died, and the Duke took over power. I think the Prince being young and an omega might have played a part in it too. Then the Duke forced the Prince to imprint him to make sure the power stays in his hand.

Guys plz give novel link?

I don’t think there are any English translations, but you can mtl the raws: https://booktoki336.com/novel/1945785?stx=%EC%9C%A0%EC%96%B8+%EB%95%8C%EB%AC%B8%EC%97%90+%EC%A3%BD%EB%8A%94+%EA%B1%B4+%EC%9E%A0%EA%B9%90+%EB%AF%B8%EB%A4%98%EC%8A%B5%EB%8B%88%EB%8B%A4
It's not too late go for it martha!!! Mr elegant!!!!