Gate of the Cataclysmic Ruins Realm

In 2045 AD, unexplained spatial rifts began to appear around the world, known as the "Gate to the Ruin Realm." Alien ferocious beasts emerged from behind the door, and at the same time, a kind of "spiritual energy" that could be absorbed by the human body began to fill the world. The old human civilization order collapsed, and the world entered the "Era of Catastrophe."