My fiance is Japanese and is a great person. She helps keep me on the straight and narrow.
She is submissive but if I step out of line I won't hear the end of it. Honor is big is cultures outside of the west.
Enjoy it while it lasts. Because once you're married she'll very likely become the same shrewish harridan wife that all men married to Japanese women complain about.
Japanese women are submissive and cute only until the ring is on and the checks are coming into their bank account from you. Then you're a dog to order around, or so the very strong stereotype goes.