Conan, Ran, and Sonoko visit the Robanov imperial treasures exhibit. The highlight of the exhibition is a tiara set with the world's largest garnet passed down from queen to queen, known as the Queen's Bang. Because Kaito Kid has declared his intent to steal the tiara, a long line has formed at the exhibition. They find Amuro and Azusa in line, and they decide to wait in line together. While waiting, at Azusa's suggestion, Amuro performs a magic trick to kill time, but...