The Great Festival of Fujisaki Hachimangu Shrine is coming up on the 17th of this month. The second URL takes you to an RKK TV report about getting the armor ready to be worn in the parade.
https://en.wikipedia.org/wiki/The_Great_Festival_of_Fujisaki_Hachimangu_Shrine
https://news.yahoo.co.jp/articles/d394e3e0159a7adddd8f7fca166a5e3e57217f0b
I find the explanation on the Wikipedia page about the name “Boshita” to be problematic. It’s an extreme oversimplification of a very complicated issue. I may post about that some other day.