Inspector Umizuki Chinami (Takei Emi) 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 (TAKAHIRO) to escort Sugimoto (Sumida Takashi), a criminal in a robbery that resulted in injuries, from Macau. However, the moment Sugimoto arrives at the airport in Japan, he is shot and killed by someone. While checking Sugimoto’s background, Chinami meets an elementary school student, Yuta (Kimino Yuma), who claims that his father has been kidnapped. His mother (Horiuchi Keiko) says it is a lie. But this weighs on Chinami’s mind. Before long, she finds out the source of the gun that was used to shoot Sugimoto. This brings her to Kanto Natsume-kai. For some reason, Yuta’s mother is there. She learns that Yuta’s father, Akiba (Hakamada Yoshihiko), a skilled workman, was abducted by Kanto Natsume-kai and made to be a dealer at an illegal casino. Sugimoto had run up debt of 20 million yen at this casino. They finally establish a link to the case and think that the case can be solved. But it is not that simple. The illegal casino has been taking place at the embassy which Japanese police cannot enter because of diplomatic immunity. Chinami has until April to solve the case. The members of the Eighteenth Section, who have quickly learnt about Chinami’s transfer, work hard in an attempt to send her off without bringing dishonour to her name, but they have just one month … …