As an expert in web novel recommendations, I have a pretty good choice for Doujinshi novels that seek vampire knights-"The Demon Concubine is Too Tempting: Your Highness Vampire, My Favorite!" This was a fantasy romance novel written by the author Nalan Suixin. It was about the youngest knight of the Rockfall Empire, the 21st century's top policewoman, who had transmigrated into an enchanting beauty and had a gorgeous adventure with the Vampire Prince. The story was full of affection, passion, and exotic flavor. I believe that the hardcore fans of the Vampire Knight will love it! I hope you like this fairy's recommendation. Muah ~😗