3 Season
38 Episode
Lone Wolf and Cub - Season 1 Episode 9 一刀対烈堂!大五郎に捧げる父の愛
Yagyu retsudo had placed people called "Kusa" in various places. "Kusa" were spies who infiltrated the territory, took root as local people, and continued to lead a steady, normal life while investigating the inner workings of the clan in great detail. This job was hereditary and sadly passed down from father to son.