Zhou Ergou was just an ordinary laborer, working strenuously in his city to make a living, doing numerous jobs daily just to get something to eat.
Later, war erupted, and as the situation became increasingly tense, people like him were rounded up and sent to the front lines. As a man of Qin, he had the duty to defend his country.
But he underwent no military training; after a brief practice on marching, he was sent to the front lines, issued a rifle, and became a soldier.
Contrary to his expectations, he didn't see a single enemy on the battlefield. Hidden in the trenches, he only heard the rumble of artillery, then his captain shouted for them to run quickly, and he ran with his gun into the ruins behind him.
He escaped from one ruin to another, from a rookie to a veteran. He never saw the Tang Army, and his troop was replaced one after another.