This novel was written after I had been drifting at sea for twenty months. The two-month return trip was really boring, so I came up with the idea of writing a novel. The article does not focus on police investigation, but on the happy life of police officers. This novel is divided into three parts, the first is the mystery of Crane City, the second is the story of an unfinished building, and the third is the tragedy of an extramarital affair.
