An invasion by demons from beyond the realm sparked a cataclysmic war. The True One of the Primordial Beginning led humanity in sealing the Demon Lord with divine beasts, then established the Ancient Bronze Gate defense line to protect the Great Wilderness. A thousand years later, a new crisis lurks beneath the seemingly peaceful Central Plains, and the seven great academies are facing their ultimate trial. Just then, the protagonist transmigrates into this world carrying a tattered book he bought for twenty yuan.
