Log of Purchases of Misfortune - Kuzuryu

Kuzuryuu, a traveling medicine peddler carrying a kakebachou (a customer ledger carried by medicine peddlers) with a picture of a kuzuryuu (nine-headed dragon) on the cover, traveled from province to province, taking on troublesome tasks under the name “baiyaku” (buying misfortune). Buying and selling the “Kengajou”—which is practically a peddler’s lifeline—and traveling all over Japan, Kuzuryuu’s goal is to unravel the mystery of his own birth. His only real clue is the kuzuryuu metal clasp on his tobacco pouch. In search of someone who knows of the it, he continues his journey...

(Source: Kodansha, translated)