Dororo Onikimaru confronts Tanosuke, a manly slaughter. The sword he wields was a cursed decoy where the devil lives. Although barely dismissing Tanosuke, the military sword has passed over to the hands of the hands and the horsemans are manipulated by the weapon.

After entering Lord Daigo's domain, Dororo and Hyakkimaru hear tales of Banmon, the huge wall that is the last remnant of a fort that once stood on the border. Hyakkimaru squares off against the fox demon that haunts the wall.