A man decides God needs to wake up, so he starts collecting his own son's blood. The city burns while three kids run from impossible odds, hunted by things that used to be human. Beast Fighter doesn't build tension, it is tension, thirteen episodes of escalating desperation where every escape just reveals how much worse it's about to get.
A city lies in ruins, wiped out by two monstrous, all-powerful beings. Genzou Kuruma, a scientist who also heads a sect, wants to wake God, but he first needs a rare kind of blood. His own son, Shinichi, carries that blood, and so does a young girl named Ayaka Sanders. Genzou will stop at nothing to seize them both, and humanity will be lost if he succeeds. Shinichi shares the power of Genzou's New Humans, genetically altered people who can turn into monsters, and he can call forth beasts from his own body. On the run with Ayaka and Tommy, he wants only one thing: revenge on his father, and he means to fight until he kills Genzou himself. The result is an action fantasy built on monstrous battles and a son hunting his father.