Kazune Yasuri

Founder of the Kyotouryuu sword style.

[Spoiler] He was born in the era of Shikizaki Kiki. Shikizaki Kiki was interested in him. Shikizaki used Kazune to develop the Kyotouryuu sword style, Shikizaki Kiki's 13th complete deviant blade, though because of the nature of the style, it was never perfected. Consequently Kazune developed the style further by passing down each generation, until it reaches Shichika who mastered it. [/Spoiler]