A character from the Katanagatari franchise and the original possessor of Outou Nokogiri. Zanki's sword style is one of peace rather than killing, which resonates with Shichika.
Zanki was originally a shogi player but after coming into possession of Outou Nokogiri, she decided to follow the ways of her grandfather and become the head of the Shinou Issou School.
Zanki is a character in the Katanagatari series of light novels written by Nishio Ishin, a popular Japanese writer, with illustrations by Take. She also appears in the anime series of the same name which was created by White Fox and directed by Keitaro Motonaga. Zanki, voiced by Shizuka Ito, makes his first appearance in the anime series during Episode 9 "Saw, the Impersonator".