“No – no frigging way.”
What could be – more frightening.
Hoisting himself up off the floor – Shichika cussed his sister out.
“There’s gotta be some things you can’t learn by watching them – how the hell can you just look at someone and absorb their monstrous strength?”
“Don’t ask me – I just can. It did take a few small adjustments to my insides. The only other thing I’ll add is that the monstrous strength of the Itezoras goes beyond mere brawn like yours. It’s much closer – to a kind of ability. That doesn’t mean there aren’t some things that I can’t watch and learn,” Nanami ceded, “but just one look was all it took to figure out that Last Fatal Orchid of yours.”

Katanagatari Omnibus 3, Page 20