Goemon's wedding to Murasaki Inabe, daughter of a samurai clan's leader, is interrupted when the Fuma ninjas attack, kidnapping the bride-to-be and demanding her family's ancient treasure as ransom. Lupin, Jigen, Goemon and Fujiko work together once again to try to save Murasaki and get to the treasure before the Fuma can steal it.
Lupin III: The Fuma Conspiracy (ルパン三世 風魔一族の陰謀, Rupan Sansei: Fūma Ichizoku no Inbō, lit. "Lupin III: The Plot of the Fuma Clan"), first released in North America as Rupan III: The Fuma Conspiracy, is a 1987 Japanese OVA action film based on Monkey Punch's Lupin III manga. Due to budgetary reasons, it utilized a different voice cast from previous entries, with Toshio Furukawa as Arsène Lupin III, Banjō Ginga as Daisuke Jigen, Mami Koyama as Fujiko Mine, Kaneto Shiozawa as Goemon Ishikawa XIII, and Seizō Katō as Inspector Kouichi Zenigata. It was the first Lupin III animation since the 1969 Pilot Film to not feature Yasuo Yamada as Lupin and the only one not to feature Kiyoshi Kobayashi as Jigen until Part 6.