The world's greatest blue sapphire, the "blue lapis fist", said to have sunk in a pirate ship in the late 19th century, on the coasts of Singapore. A local millionaire plots to retrieve it, and when it's exhibited in an exhibition at the Singaporean Marina Sands hotel, a murder takes place.

• TMS Entertainment
• Shogakukan
• Minami Takayama
• Kappei Yamaguchi
• Wakana Yamazaki
• Rikiya Koyama
• Naoko Matsui
• Nobuyuki Hiyama
• Kenichi Ogata
• Megumi Hayashibara