In the seventeenth year of the Apocalypse, nineteen years after Yanhui City was forgotten by the court, three thousand cavalry from the Canglang tribe of the barbarians went south to knock the pass. General Xu Huaishan wanted to exchange the destruction of a city for thirty years of peace in the north. The lamp has been burning for one hundred and forty-three years. When all choices come to an end, they understand: the hardest thing is not to die, but to live and remember.