I do not have much information on this school. As with many naginata schools the performers are very old women. The application here is interesting as the use of the chain mimics the manrikigusari (or some styles thereof) with a wrap and tension approach.
Lever from bind to grapple.
The sword is wrapped from the bind using tension like a manriki.
Note the wrap and tension.
Blocking/binding with the chain.
Entering with the bind of the chain.
Body entanglement.
Blocking with the kama.
Sweep down from the bind at the weakness.
Grapple.
The demonstration from which these stills are taken:
Lever from bind to grapple.
Note the wrap and tension.
Blocking/binding with the chain.
Entering with the bind of the chain.
Body entanglement.
Blocking with the kama.
Sweep down from the bind at the weakness.
Grapple.
The demonstration from which these stills are taken: