Kanazuchi, the Twin Sword

Synopsis

Lost and freezing in the Ezo region, Togame and Shichika are found by an 11 year-old girl named Itezora Konayuki who is the last of the missing Itezora clan and takes them into her makeshift home. Later, she helps them find the sixth sword (Soutou Kanazuchi) and follows her clans instructions of not giving the word up unless defeated in battle. When Shichika challenges Konayuki and goes easy on her, his arm is broken and Konayuki becomes the first person to defeat Shichika. While Shichika recovers, Konayuki encounters the vengeful Maniwa Kyouken uses her power to take over the young girl’s body and sees how Konayuki’s clan had been annihilated by Nanami. She then engages Shichika in a fight. Unlike his last match with Konayuki, Shichika is able to see through this ninja’s moves and defeats Kyouken’s spirit, knocking Konayuki unconscious. Later, Konayuki gives up the sword and apologizes for lying to them about her clan’s instructions. With Kanazuchi, Konayuki promises to take it to the mainland with her on her way to live at the Sanzu shrine. (Source: Wikipedia)