When an Ainu village discovers that someone has been defiling their livestock and then butchering them, the blame falls on Genjirou Tanigaki. Luckily, Shiraishi remembers Shiton Anehata, a tattooed convict who was imprisoned for similar crimes. While the Ainu prepare to punish Tanigaki, Asirpa and Sugimoto pursue Shiton to capture him in order to clear Tanigaki's name before it is too late.