As the Ancestor of Vampires, I Specialize in Substitutes

The end of the world is coming, but Luo Cheng finds that there is something different about himself. Why is it different? I have become the ancestor of vampires, yes, but why am I so calm! But forget about the ancestor of vampires, why do I still have a substitute arrow? When I saw the certificate in my hand that represented the substitute, I seemed to have thought of something. Note: The harem story may have been collected one by one. The entire small organization then turned into a vampire. Well, the substitutes were all substitutes in the original work. I am not very good at creating substitutes. After all, if the creation is too abnormal, it will not work. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.