Amid Japan's era of isolation, Kisuke, a young and unlucky retainer, is entrusted with a perilous job: to journey from Edo to Nagasaki and deliver a mysterious package to the enigmatic master of a powerful family. But the road is treacherous, and danger lurks at every turn. As Kisuke struggles with the secrets his cargo holds, his life takes an unexpected turn. This is the tale of how a downtrodden servant rose against all odds to carve his name into Nagasaki's history.