The TCG has it already, but now we have a Japanese name!
To probably many’s surprise, Bujingi Sinyou isn’t Bujingi – Kusanagi in the OCG, it’s called
Bujingi – Tsumugari
What’s a Tsumugari? Another name for the Kusanagi. The source article goes on to say there’s a bunch of Bujin included in Knights of Order.