Set in Japan during an unspecific year of the Edo period, Ogami Ittō, disgraced former executioner, or Kogi Kaishakunin, to the ''shōgun'', wanders the countryside, pushing a baby cart with his 3-year-old son Daigoro inside. A banner hangs off his back. ''"Ogami: Suiouryo technique"'' (Child and expertise for rent)(子を[son] 貸し[for hire] 腕 [arm|skill] 貸し[for hire] つかまつる [to serve] 水