Gu Cangsheng, a Taoist disciple, inherited the heart of a knight, wielded the sword of injustice, and encountered the war in Hebei. The Di people went south, the court was decayed, and the people were caught between the iron hoof and the rules, life and death were at stake. He could have stayed out of the matter, but when he saw the old woman waiting for her grandson, the boatman going to his death, and the rebel army guarding the mountain, he finally realized that his way is not to forget, but to not forget. Then he used the stick as a ruler to measure the injustice in the world; he used the arrow as a pen to write down the names of the people. The purpose of drawing out the sword to quell the chaos is not for fame, but to give people a ride and let the kneeling people stand and live.
