Whereas most every other kung-fu movie (at least all the ones that were made in Hong Kong) portrays Japanese as evil, sneaky no-good-nicks and Chinese as mostly virtuous heroes this one has a bit of a more "we're all just humans, can't we all just get along"-message. It starts out with the tale of a Chinese man who gets married to a Japanese lady and then proceeds to argue with her all the time about whose culture is better. This half of the movie plays almost like a rom-com and is a little strange for a Shaw Brothers film. It does end up in more standard territory for most of the last half when some of your more typical bad-guy Japanese fellows show up to challenge our main character(Liu Chia-Hui aka Gordon Liu) to a duel. From there things do end up on a surprisingly tolerant note(Surprising to anyone who knows the volatile and brutal history between China and Japan anyway.)
This one is worth a look for martial arts lovers who want something at least a little different than the standard.
AKA CHALLENGE OF THE NINJA: