The story of this book takes place in the near future, saying that in 201*, the earth was ravaged by the HH virus, humans, birds, animals, plants, etc. have mutated, human beings have gained special abilities, birds and beasts have given birth to wisdom, a year later, mutated monsters frantically attacked the human world, bringing far more tragic blows to human beings than the HH virus period, many cities fell, and humans became food for monsters, this dark era is called the era of great destruction.

In the era of great destruction, the human state was reshuffled and developed into the current seven continent countries and many survival bases, but many survival bases depend on the seven continent countries to exist.

After two hundred years of development, the seven continents have formed a set of cultivation systems that meet their own needs, and integrated into the school education system, now almost everyone in the human race is cultivating, but due to the limitations of their own physique, the proportion of martial artists is only one percent. The strength level of the warrior is also divided into warrior level, war general level, war honor level, war god level and the existence beyond the god of war, each level is divided into three levels: junior high school and high school; At the same time, humans also divide monsters into beast soldiers, beast generals, lords, beast lords, and beast kings.