My Date with a Vampire: I Lived from Ancient Times to the Modern Era

I accidentally became reborn in ancient times.

What? My sister is Chang’e, and my brother-in-law is Hou Yi? That’s no big deal.

What? My sister has a rival named the Holy Mother of Yaochi? She poisoned the whole human world, and the important thing is, I got poisoned too?

Then why is my brother-in-law walking toward me with bloodshot eyes and two fangs bared??

Urgent, please help.