A special investigative unit called FCIN investigates real-life murders and disappearances by writing up fictional worlds you can enter with a special key. When one of the investigators is murdered by someone in one of these fictional worlds, a young woman named Midori gets caught up in the case.
| Actor | Role |
|---|---|
| RRyoha MomokaMidori Kusakabe | Midori Kusakabe |
| RRyo IgarashiSeiji Sazanami | Seiji Sazanami |
| JJioToshiharu Aoshima | Toshiharu Aoshima |
| IIsao ShinoharaShinnosuke Narumiya | Shinnosuke Narumiya |
| HHibi SakakiTetsuo Dodo | Tetsuo Dodo |
| RRui SakuraLily Tachibana | Lily Tachibana |
| AAkiko ShimabukuroNot listed | Not listed |
| UUi OzawaNot listed | Not listed |
| YYoko AkitaNot listed | Not listed |
| HHinano SakurabaNot listed | Not listed |
| GGeorge IshikawaNot listed | Not listed |
| RRinto WakiNot listed | Not listed |
| TTake FujimotoNot listed | Not listed |
| MMisaki FujiharaNot listed | Not listed |
| EEri FujiwaraNot listed | Not listed |
| KKansaku ShinoharaNot listed | Not listed |
 Keiji YamashitaNot listed | Not listed |