In a world after nuclear war
Human beings are exposed to nuclear radiation for a long time and live in a difficult environment.
Not only the body's functions are strengthened, but also it is more able to withstand the effects of radiation.
This period of time is called by science a period of natural evolution.
As a result, the world has become two major ideological camps.
The Principality of Kyandoni believes that human beings should maintain the balance, life and evolution of nature with the lowest materials.
However, the Dix Empire believes that humans should use technology and materials to dominate the changes in nature.
Although the two countries have different ideals, they coexist peacefully until a certain experiment and plan are implemented...