The Detective Boys meet Nanami Kyoudou, who's grandfather, Seitarou Kyoudou is the one who built "The Black Tower", rumored to have no entrance and treasure hidden within. Later, they visit her house
Elenco:
Minami Takayama
,
Kappei Yamaguchi
,
Wakana Yamazaki
,
Akira Kamiya
,
Rikiya Koyama
,
Megumi Hayashibara
,
Kenichi Ogata
,
Ikue Otani
,
Wataru Takagi
,
Chafurin
,
Yukiko Iwai
,
Kotono Mitsuishi
,
Kikuko Inoue
,
Fumihiko Tachiki
,
Hideyuki Tanaka
,
Kenichi Ogata
,
Sumi Shimamoto
,
Unsho Ishizuka
,
Yukiko Iwai
,
Yukitoshi Hori
,
Yuko Miyamura
,
Wakana Yamazaki
,
Kappei Yamaguchi
,
Minami Takayama
,
Akira Kamiya
,
Rikiya Koyama
,
Ryotaro Okiayu
,
Ai Orikasa
,
Atsuko Yuya
,
Hiroyuki Kinoshita
,
Asako Dodo
.
