- Italiano
- magyar / magyar nyelv
- dansk
- Norsk
- Titolo Originale: 理由
- Conosciuto Anche Come: Miyabe Miyuki “Gokujou” Mysteries: Riyu , Riyu , Riyuu
- Regista: Yamamoto Takeyoshi
- Generi: Mistero, Drama
Cast & Ringraziamenti
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![Terao Akira in The Reason Japanese Special (2012)]( "Terao Akira in The Reason Japanese Special (2012)")
Terao AkiraYoshida TatsuoRuolo Principale -
![Hayami Mokomichi in The Reason Japanese Special (2012)]( "Hayami Mokomichi in The Reason Japanese Special (2012)")
Hayami MokomichiYashiro YujiRuolo di Supporto -
![Fukiishi Kazue in The Reason Japanese Special (2012)]( "Fukiishi Kazue in The Reason Japanese Special (2012)")
Fukiishi KazueTakarai AyakoRuolo di Supporto -
![Fukushi Seiji in The Reason Japanese Special (2012)]( "Fukushi Seiji in The Reason Japanese Special (2012)")
Fukushi SeijiAsakura KazuyaRuolo di Supporto -
![Nagayama Kento in The Reason Japanese Special (2012)]( "Nagayama Kento in The Reason Japanese Special (2012)")
Nagayama KentoTachibana KeitaRuolo di Supporto -
![Suda Masaki in The Reason Japanese Special (2012)]( "Suda Masaki in The Reason Japanese Special (2012)")
Suda MasakiTakarai YasutakaRuolo di Supporto
