The Detective Boys wish to capture a few beetles to bring to school, and as a result, visit Agasa's old friend in the mountains. The Detective Boys manage to find a bunch of beetles at night, but return to find Namatame injured. Namatame's last words are "Miyama Stag Beetle" before losing consciousness.
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 .