As part of workplace reforms at the Tokyo Metropolitan Police, the three mobile investigative units under the Criminal Investigations Department are expanded to four. Detective Shima Kazumi (Hoshino Gen) is called in to be a member of the newly established Mobile Investigative Unit 4 which is meant to help various divisions such as the First Investigative Division. However, no partner has been found due to a personnel issue. There is no choice but to summon Ibuki Ai (Ayano Go), a police officer at the Okutama police box who was initially eliminated as a candidate, and the two of them are ordered by the head of Mobile Investigative Unit 4 to team up. Shima is the type who trusts no one and grows uneasy about Ibuki. He gathers information about him but the more he checks up, the more perturbed he gets. The first day of duty for Mobile Investigative Unit 4 finally arrives. Shima forms a good impression of Ibuki who is surprisingly courteous when they meet for first time, but … …
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Comments by Eyeyore [Rating: 10/10] This drama could have been entitled Aibou. This is the first time I don't see a sugar candy dangling as a sidekick. Rarely would a drama give a balanced portrayal of all the detectives in a division. Every case brings out a social issue in society, so we are not watching mere boring murder / robbery cases. Running in the background of every case are two unsolved crime that unfold in each episode. If you are in a rush, don't watch.Spending eleven hours watching is inevitable.