Asirpa and Sugimoto are faced with a shocking truth—Noppera-bo, the criminal mastermind behind the stolen gold hoard…is Asirpa’s father! To confirm this they decide to go to the impregnable Abashiri prison to attempt to meet him.
Along the way they find more clues to the location of the gold, and make a stop in a hellish hotel.
Meanwhile, Toshizo Hijikata lays down his own brand of justice in a lawless town