While Yasuri Nanami was making short change of the Sacred Guardians of Mt. Shirei ─ you can be sure that she had watched and learned their methods.
With those eyes.
Just as she had gleaned the Maniwa Ninpo.
And the monstrous strength of the Itezoras.
She observed ─ their necromancy.
Since warriors they were not, their skill did not immediately prove useful to Nanami, but on the boat sailing from Mutsu to Shikoku─
She tried it on for size.
And was visited by her father ─ Mutsue Yasuri.
And her mother ─ Migiri Yasuri.
Not misty images ─ but clear as day.
“Huh.”
Nanami nodded comprehendingly.
“Okay… so this was how it works.”
Soon she heard the departed speak.
The first voice was her father, Mutsue.
─ Nanami.
My dear ─
Sweet Nanami ─ you’re far too ─
Far too ─ way too ─
Strong ─
Too strong for me to teach ─
I must not─must not make you any stronger ─
You ─
You’re a monster ─
You should never have been born.
Migiri chimed in.
─ Poor thing.
Poor little ─ girl ─
Poor girl ─
If you ─
If only you could die, it would be over ─
But you can’t die ─ and can’t live either ─
Trapped ─ in a life you never asked for ─
I wish ─
I wish you could just die.
“Boh-ring.”
Nanami switched off the move.
It was boring the hell out of her.
This was ─ only memory.
There inside her all along.
She didn’t need a special move─to see them.
She saw them.
Thought about them constantly.

Katanagatari Omnibus 3, Page 63