Hi, my name is Chris, and I'm interested in Kyushu koryu
I recently came across this tiny school based in Fukuoka, which looks interesting.
http://shinobinoshu.the-ninja.jp/kojutsu1.html
This is a film of their kenjutsu
https://www.youtube.com/watch?v=WsVCHgPkRwQ
According to the website, they have five students and they have unique forms using nagigama.
Enjoy