“Plus, if I try coming at it from behind, its head does a one-eighty. This thing is not built like a human being – but the Kyotoryu is made for fighting humans. I never thought I’d have to fight a robot.”
“Hmm…”
He had a point – even Nanami Yasuri, whose genius eyes and limitless capacity to watch and learn, acquiring any kind of move, regardless of the enemy – would likely be unable to acquire moves from Skytron, whose physicality was simply too unlike her own.

Katanagatari Omnibus 3, Page 177