“When I say you’re not qualified to inherit the school, it’s not because you’re a girl, and it’s not because you’re sick. That wouldn’t amount to a reason. It’s just that I – no, not just me, this goes for all the martial artists in the world, from every discipline – Nanami, no one…”
Mutsue Yasuri, Sixth Master of the Kyotoryu, and Hero of the Rebellion – rued the very words he spoke.
“No one could raise a person of such unparalleled strength as you –“

Katanagatari Omnibus 2, Page 34