C1947 It Was a Long Way to Go

The process of extracting the blood sample was more awkward.

The defense of these beasts was extremely strong. Let alone normal needles, even bullets wouldn't be able to harm them.

Helpless, he could only create his own wounds.

The process of creating the serum was very fast.

Due to the fact that the Yao beast's body contained a very strong virus, the antibodies were not needed