There is a big organisation of rather prestigious thieves that is finally looking for a new leader. To see who would be the best, a stealing competition is held. After the test, everyone comes together to celebrate, but there, one of the members turns out to be a scammer and steals a very valuable necklace that Cleopatra once wore. In the process of stealing the necklace, the leader of the organisation is killed. Not being able to forgive the betrayal, Lupin starts to form a group to get that necklace back and avenge the murder.