Many Japanese people now prefer to do "Western-style weddings", with the bride wearing a white dress, the groom a suit, and even getting a (fake) priest and a chapel, and rings, eventhough they are not Christian. I personally can't understand that.
Btw, my wife and I didn't get any religious ceremony at our wedding in Japan, and don't wear rings (I see it as a stupid, old-fashioned tradition with too much Christian connotation, even if its origins predate Xianity).