A wave of zombies is coming.

They were a group of orphans. What was an orphan? It was not that they had no parents or relatives, but they had parents and relatives, but no one wanted them. When they were still very young, they were bought by a researcher in a laboratory. After countless experiments, they plotted to take revenge and took control of the laboratory. But, so what? They felt that they should have a good life. Well, the end of the world had come, zombies were everywhere, how could they survive? Please see how they survive in the end of the world.