While there are a few Japanese women I've encountered who get off on body hair, the vast majority I've met seem genuinely turned off by it. For an ethnically-Japanese guy I'm pretty fucking hairy, but Japanese "hairy" and European "hairy" are two different things. I've got some sparse chest and abdomen hair and that's it, but that's "hairy" in Japan. I've had several Japanese girls complain about it and suggest I shave. Due to my ethnicity, however, I'm often held to different standards than white guys so Japanese girls will bitch about things I do that they'd never bother about with a white boyfriend. Now, European "hairy," meaning you're covered like a fucking werewolf with a dense carpet all over your back and shoulders and everywhere else...I'm no expert but I'm guessing that's generally not going to play well anywhere in Asia.
OP, just buy a case of Nair and get to work. Or, as another poster suggested, you could act out that scene from 40yo Virgin and get waxed. Not only would that be funny as shit but I'm guessing you're probably not far off from that age.