Overview
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.
Cast
Mahiro Takasugi
Yoshihiro Kobayashi / Yoshirou
Mayu Hotta
Akechi Saya
Gaku Sano
Watari
Kohki Osamura
Kaito Kurosaki
Mizuki Itagaki
Shotaro Yumeno
Oshirō Maeda
Atsushi Tsukahara
Hiroshi Kamiya
The Fiend with Twenty Faces of the Phantom (voice)
Jiro Sato
Manaka [Teacher]
Tomomi Maruyama
Yoshinobu Kobayashi
H
Higashino Mizuki
Saotome [Teacher]
Koki Ishige
Kobayashi Yoshiro [Young]
Gaku Oshida