The Isle of Koumi, a beautiful island in the Pacific Ocean. On the island, people pass an old legend down from generation to generation that there was the Seabed Palace, an ancient ruin at the bottom of the sea, where the treasure of female pirates Anne Bonny and Mary Reed was left. When Conan and his friends visit Koumi while on vacation, they meet some suspicious treasure hunters.
Minami Takayama
Kappei Yamaguchi
Wakana Yamazaki
Naoko Matsui
Akira Kamiya
Kenichi Ogata
Megumi Hayashibara
Yukiko Iwai
Wataru Takagi
Ikue Otani
Chafurin
Kazuhiko Inoue
Atsuko Yuya
Kenyu Horiuchi
Jouji Nakata
Nobutoshi Canna
Takaya Kuroda
Makiko Ohmoto
Masayo Kurata
Minoru Inaba
Takanobu Hozumi