Lost and freezing on Mt. Odori in the Ezo region, Togame and Shichika are rescued by an incredibly strong 11 year-old girl named Konayuki Itezora who is the last of the Itezora clan whom she says were all killed in an avalanche. Meanwhile, The remaining members of the Maniwa ninja regroup and prepare to collect Deviant Blades together while avoiding Togame and Shichika, however Kyöken takes off after Togame seeking revenge. At Mt. Odori, Konayuki finds the sixth sword, the incredibly heavy Sötö Kanazuchi...