"A ruler means a life. If you don't calculate accurately, the ruler will bite you; if you calculate accurately, you will pay the price."
Twenty-three-year-old Jiang Buyi just wanted to set up a stall to swindle some money so that he could save money for his sister's surgery.
An evil black wooden ruler made every life he calculated come true.
Calculate who dies, calculate and solve the case.
From street hustler to police "non-staff consultant"——
He was forced to embark on a path of "no one is allowed to count"