High school student Yoshiro Kobayashi (Mahiro Takasugi) is the great-grandchild of the first president of the Boy Detectives Club. He enjoys time with his friends Watari (Gaku Sano) and Saya (Mayu Hotta). One day, the Fiend with Twenty Faces appears in front of Yoshiro. Mysterious cases then takes place in sequence.
- Created by
- Shintarô Ashizuka
- Origin
- JP
Cast
Mahiro TakasugiYoshihiro Kobayashi / Yoshirou
Mayu HottaAkechi Saya
Gaku SanoWatari
Kohki OsamuraKaito Kurosaki
Mizuki ItagakiShotaro Yumeno
Oshirō MaedaAtsushi Tsukahara
Hiroshi KamiyaThe Fiend with Twenty Faces of the Phantom (voice)
Jiro SatoManaka [Teacher]
Tomomi MaruyamaYoshinobu Kobayashi- Higashino MizukiSaotome [Teacher]
