Inspector Umizuki Chinami is a career elite and yet treated as a burden. It has been one year since she was assigned to the Eighteenth Section of the Tokyo Metropolitan Police Department’s First Investigative Division as a rookie detective. A transfer order is waiting for her in the new year. Unaware of this, Chinami goes with Shitara Kyosuke to escort Sugimoto, a criminal in a robbery that resulted in injuries, from Macau.