Nawa-kai 縄会
A rope gathering or rope club; Shibari Study likens it to a rope jam but notes that it is often a showcase by experienced kinbakushi.
Kai is the common Japanese word for a meeting or gathering, and also for a society or club (Jisho). Andrea Ropes accordingly glosses nawa kai as a rope club. Shibari Study’s glossary writes it 縄会 and calls it a meeting of rope people comparable to a Western rope jam, with one difference: a nawa-kai is frequently a showcase in which experienced kinbakushi show their rope work, not a session open to everyone who wants to tie.