In this short scene, the vampire inspector explains that he and his brother will be "baptized" tonight. He explains that the ceremony is similar to a marriage ceremony, in that vampires and humans make a vow to remain faithful to one another for their entire lives. In other words, if they are both baptized tonight, they will both belong to the same person forever. This means that, after the baptism tonight, Lu will be loyal to the vampire girl forever, and if he is not, then he will belong to someone else. The vampire inspector crouches and says that he will protect the girl from the vampire's attack. He says that if the vampire wants to kill him, he should come with him