Lupin is after the golden gun and diamond bullets that are the heirlooms of the House of Wilhelm, but upon learning that the current head of the house, Brillia, is a girl still in her teens, Lupin gives up. At the same time, a string of handgun thefts are taking place in London. The 99th gun stolen is Jigen's Magnum, and the 100th is Lupin's Walther P-38. Lupin fights Benkei's magnet-gun with a remote-controlled flying gun. The scent of Chanel fills the air. How does the vault containing the golden gun open?
