A canon for eternal life and youth is said to be concealed in the jungles of Thailand. Not only are Arsène Lupin III and his girlfriend Fujiko Mine on a race after it, but joining the game is Emmanuelle Poirot, granddaughter of the legendary detective Hercule Poirot. Lupin goes to the temple where the canon is said to be, being manipulated all the way, and takes the challenge of stealing the canon from the footstone containing it! A beautiful trap is set, stealing even into the heart.
—Tenchi