Chen Mo, who delivers food, has a rule: If you don't cash it today, you will pay it back tomorrow.
On that job half a year ago, eight people went out and he was the only one who came back.
He searched for three years and found the "Old Zhou" who had not been found in the old town of Linjiang.
There are more than 400 alleys without house numbers, all in his mind.
He didn't cause trouble and didn't show up - he just delivered the meals and wrote down what he saw.
Then the men, one by one, walked themselves in front of the police.
Everyone who had offended him later understood: Brother Gou will remember this account.