A fired risk controller found a piece of paper with his father's name written on it in the shredder. Twenty years ago, his father discovered the deepest ledger in the bank, was fired, and never came back. Now, paper is back. Every name in the ledger corresponds to a sum of money that should not exist. Ye Chen checked the names one by one - and found that the last name was his own. What he wants to know is not only where the money went, but also who made the ledger disappear, and who will be fired next?
