S02E99: The Combat Magnum Scattered in the Wasteland

The loot this time is the single Hannibal coin, which is in the Duchy of Blanco. Hidden within it is the site where the hero Hannibal buried his war chest, but Jigen, who was late for a duel five years ago due to unavoidable circumstances, chooses instead the road that leads to the showdown with his enemy, Stoneman. The time for the border closing is near. When the duel begins, Jigen's Magnum isn't in his holster. What is Lupin up to?