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.

• Meisa Kuroki
• Mikako Tabe
• Yu Shirota
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• Masatô Ibu
• Yukiya Kitamura
• Kenichi Yajima
• Toru Nomaguchi