Generally, vampires lived much longer than humans. In fact, according to the records of human legends, no vampires ever died from old age.
Vampires, as a species, besides having a long lifespan, were also much stronger compared to humans. Fortunately, vampires were small in numbers.
On top of that, there were a lot of subtle things in the world. For example, richer people were greedier for wealth and older people were more afraid of death.
That was why the vampire captured by Rody showed that he was afraid of death.
Before Rody could even start to utilize the interrogation methods he had learned from Dandong’s notes, the low ranked vampire had already started to answer all of Rody’s questions.