Strange People Existing in Daily Life

The non-humans that appear in the middle of the night are like zombies with a thirst for flesh and blood. No matter how they are eliminated, they will always follow them like shadows. They continue to evolve, go to heaven and earth like myths, and move mountains and seas. Humans strengthen themselves based on alien crystals. They are called blood species. Through this, they gain abilities comparable to aliens. In the sparse and ordinary life, cat-and-mouse wars are constantly being staged. Is this the country of aliens or the country of humans? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.