Global Catastrophe, Get the Blood of the Emperor at the Beginning

Nuclear pollution spreads around the world, and countless biological mutations occur. Human technology has stagnated due to the invasion of monsters. After years of exploration, humans have discovered that some people have the blood of those mythical beasts and can use their abilities. Finally, with the rising resistance of mankind, mankind once again became the overlord of Blue Star and gained the long-lost peace. But what people don't know is that Blue Star merged with another unknown plane due to the revival of spiritual energy. The creatures in that plane are ready to attack Blue Star. Strange ruins, the secrets of the human emperor, the twins of good and evil, everything has become confusing. And those polluted creatures don't seem to be satisfied with the status quo of being exiled. This hard-won peace, How long can it last?