My research has told me that while Lacrosse is a very old sport, it was completely isolated in North America and had no possible way of making it’s way to Japan during the Sengoku era.
I thought the lacrosse thing was really weird too but after some poking around, I think her weapon is the stick used in dakyu.
You would be right!
Looking at the picture provided, hers is very clearly a dakyu stick and not a lacrosse stick. Thank you for clearing that up.
as opposed to