I Have an Invincible Heart

In the past, during the battle in the Immortal Realm, the universe was in endless chaos. Under the great catastrophe, only a piece of the true world could still inhabit living beings. This universe is called the prehistoric universe. Later, the formation was loosened, the cave sky opened wide, and the spiritual energy burst out again, and it was renamed the Guzhen Realm. It is now the 20th year of the second century in the ancient true world.