| The head of the Information Division of the Kyoto Prefectural Police, Grass Wall Office (commonly known as the "Maze Division"), Kansaburo Torii, and his subordinate Yoko Nanao, use information of previous investigations to find the truth and solve the story of the pending cases that are about to expire. |
| Name | Character | Episodes |
|---|---|---|
| Tsunehiko Watase | Torii Kansaburo | 90 |
| Atsuko Sakurai | Yoko Nanao | 90 |