Falling from a Vampire

Fantasy + half cool novel + single female protagonist + knife + auxiliary system. He traveled through time and became a weak vampire. Without any companions in the fantasy world, he gradually went off the rails on his thirst for blood. From the blood of mortals to the essence and blood of the great emperor, even Pangu will not be spared. But, The long lifespan of the Vampire family allows him... The introduction is weak, please read the text. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.