Tells the story of how Fujiko Mine first met Arsène Lupin III. Fujiko is on a mission to infiltrate a drug operation, which is not helped by the arrival of master thief Lupin.

Lupin the Third has declared that he will steal the mask of a famous opera singer. Inspector Zenigata takes note of this challenge, and decides to personally attend the singer's next performance.

Lupin and Jigen find themselves looking after a girl who was used as a living piece of art, whilst evading Fujiko, who desperately wants to kill her for personal reasons.