"Ordinary people, if given enough money, would usually keep the secret for the duration of the agreement, as they wouldn't attempt to squeeze money from both sides, thus greatly reducing the chances of scaring them off,"
"However," Xue Yan continued, "if we go by this plan, we'd need to finish all the DNA testing, and ideally clear up the kidnapping within the one month or half month period we set. So, we need to think carefully about the duration, but it shouldn't be too long either—something like several years sounds too vague. A month, I think, would be better."