A mysterious epidemic broke out instantly, and tens of thousands of humans turned into vampires to survive.
However, 30 years later, it is clear that the number of humans can no longer meet the requirements of vampires.
The human race has become rare. Let's see how humans survive.
(I watched a movie called Daybreak. I was amazed. I thought the concept was pretty good. Other vampire settings were cliche. I think I am a fan of this movie.)