The king of Austrian's grandchildren board a train carrying highly valued artworks, and to get to her target Fujiko impersonates herself as Maria, their tutor. While on board, she runs into a mysterious samurai from the East - Goemon Ishikawa.

Fujiko and Goemon become involved in a case that could very well lead to World War III.

Lupin investigates a group of owl people who desire Fujiko and begins to learn more about Fujiko's past whilst fighting off illusions brought on by a strange drug.