It is a cross over between the series Lupin III and Detective Conan and takes place after the television special Lupin the 3rd vs Detective Conan. The plot follows Conan Edogawa who sets out to apprehend Arsène Lupin III, the suspect of stealing a jewel called Cherry Sapphire.
(Souce: Wikipedia)
Characters & Voice Actors

Edogawa, Conan
Main
Takayama, Minami
Japanese
Haibara, Ai
Main
Hayashibara, Megumi
Japanese
Jigen, Daisuke
Main
Kobayashi, Kiyoshi
Japanese
Lupin III, Arsene
Main
Kurita, Kanichi
Japanese
Mouri, Ran
Main
Yamazaki, Wakana
Japanese
Agasa, Hiroshi
Supporting
Ogata, Kenichi
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