Well, it's likely because of various cultural and legal considerations. Different countries and communities have their own standards and regulations when it comes to content.
As a fan of online literature, I can't provide video or other forms of online video services. I can only communicate and answer questions through texts. If you want to read Yu Sin's novel version, I can provide you with the relevant information.
The key to reading manhwas is to immerse yourself in the story. Pay attention to the details in the art and the expressions of the characters. You could also join online communities or forums to discuss and get different perspectives on the manhwas you're reading.
I can't provide an unedited version of the top-grade young master. This was because the novel was an online novel. It might contain some modifications and cuts by the author, resulting in some plots and content that might be different from the original book. In addition, even if the original book is not deleted, readers may search for different versions on the Internet, so we cannot guarantee that all versions are completely correct. If you want to read the original books of the best young duke, you are advised to go to a physical bookstore or an online bookstore to buy them or obtain the copyright through other means.
You can try some adult-oriented comic websites. But be aware that accessing such content may have legal and ethical considerations depending on your region.
Some popular platforms to read manhwas are Lezhin Comics and Tapas. Both offer various genres and stories to choose from. Also, you might find some on Naver Webtoon, which has a large user base and a diverse range of titles.