Hayato is Coming(1972)

series - first aired/released 1972-10-05

In the Kyoho era, Hayato, a shogun vassal commissioned as a traveling inspector by Tokugawa Yoshimune, adopts the guise of a ronin. Accompanied by the enigmatic Kihachi the kappa, he journeys discreetly through different provinces, administering justice to the malevolent forces...