Lupin the Third: Blood Seal of the Eternal Mermaid

Lupin is forced by a powerful woman to steal a gemstone known as the Mermaid's Scale from a secret underground auction. He soon discovers the jewel is a fake and that the authentic stone is part of an ancient riddle involving a girl who cannot die. As Lupin attempts to solve the mystery to uncover a treasure that allows one to transcend mortality, he must navigate various obstacles and avoid capture by Inspector Zenigata.

This Japanese animated TV movie was directed by Teiichi Takiguchi and written by Michihiro Tsuchiya. The voice cast features Kanichi Kurita, Kiyoshi Kobayashi, Miyuki Sawashiro, Daisuke Namikawa, Koichi Yamadera, and Akira Ishida. The production was a collaboration between Nippon Television Network Corporation, TMS Entertainment, and Telecom Animation Film.

The film has received moderate reception from viewers, holding a 6.8 rating on IMDb from 264 votes and a 6.2 rating on TMDB from 23 votes.