This novel was called "Return Step by Step". The main character, Lin Chen, was accidentally killed by his master and transmigrated to the modern world. He had a younger sister in the modern world, but there was no plot of the vampire queen. I recommend a Xianxia novel about vampires,"Vampires in the Celestial World," which tells the story of a vampire in the Celestial World. I hope you like this fairy's recommendation. Muah ~😗