Kenji Igari

High school students Isaki and Hiramasa can't stand being bored. One day, while walking across town, they bump shoulders with two other people. An argument ensues and, as usual, Hiramasa is ready to fight. Hiramasa is supremely confident when it comes to fighting. An unusual thing happens though, Hiramasa gets knocked out ...

The show is based on the "Jiu" suspense novel series by Honda Tetsuya. Motoko (Kuroki) is a fierce, physically capable investigator with a strong battle instinct, while Misaki (Tabe) is more intellectual, kind-hearted, and naive. The two of them are both working to track down Jiu, the ringleader responsible for a series of brutal crimes.

Ippei Yasuda comes from a rich background and is admitted into law school, but he decides to join the police force to establish his own sense of justice.