Jinenryu Nito Jyutsu: Doto 自然流 二刀術 怒波

Sensei clarified the sword movement for this Kata.
"Your arms should move naturally in a swing and come up with the mine of both swords meeting the opponent's blade."
"You should end up looking at your fingernails"
Fingernails-tsume 爪 (a cool kanji that actually kinda resembles what it stands for)