![](https://pic1.mangapicgallery.com/r/avatar/45/u1435430_50x50.jpg?2)
are there any novels?
![](https://pic1.mangapicgallery.com/r/avatar/4b/u63545_50x50.jpg?2)
Yes here the link
https://www.novelupdates.com/series/the-precious-sister-of-the-villainous-grand-duke/
And the raws to the webtoon
https://newtoki95.com/webtoon/10479855?stx=악당+대공님의+귀하디귀한+여동생&title=악당+대공님의+귀하디귀한+여동생
drop the link from the noveeel