Spy War Codename: I'm a Useless, Clumsy Abacus

Tianjin, 1939. Shen Mancang, a bookkeeper who spent ten years working as an auditor in his previous life, transmigrates into the role of a clerk at the police bureau of the puppet Tianjin Municipal Government. He develops a pair of eyes that can see the accounts of people's hearts: hidden secrets float above everyone's head. Li Fu hangs himself in a storeroom, and the black ledger vanishes without a trace. Japanese agents lurk in foreign firms, and a list of Military Statistics Bureau operatives turns up in a pawnshop. As the abacus beads click and clack, every debit is a life, and every credit is a life too. Sitting astride the ledger's spine, he settles the accounts of the dead and fights to earn himself a way to live.