Zanki is a calm and serious individual.
Zanki is a girl with black hair and a distinct lock on the her left side of her face that has the appearance of a katana edge
When first encountered she's dueled for control over Nokogiri, but she wins against Shichika Yasuri. She later attempts to train Shichika in kendo, an activity he is unskilled in due to his family's inherent inability to wield a sword of any kind. While training with her they get caught up in a series of misunderstandings from Togame who comes to see progress, suggesting something sexual. Near the end of his training, Shichika is still unable to fight with a sword, but Togame outflanks her by reciting moves in shogi distracting her long enough to have Shichika land a hit. In the end she hands over Nokogiri admitting her loss while revealing a more feminine side before Shichika and Togame depart.
Swordsmanship Specialist: Zanki wields Nokogiri, a wooden sword also known as the King Sword.
- Ultimate technique: Ōtō Rakudo (王刀楽土)
- The name Zanki means "shame" (慚愧).
- Zanki's surname Kiguchi means "vapor, steam" (汽) (ki) and "mouth, entrance" (口) (kuchi/guchi).
- Zanki is a shogi player.