Tengu hikyaku

He may not look it, but Utaemon Ichikawa is the fastest runner in Kyoto, and the mainstay of his private mail company. At the moment, there is a personal and business crisis at hand. There is a mysterious fleet-footed thief around, and he is the prime suspect on the run and trying to find the bad guy; a plague is killing children in town, and the local doctor needs a Dutch medicine from Nagasaki, which his firm is supposed to pick up for distribution at cost.