Well, I have nothing to be ashamed of. I can't speak on your behalf, but from what I've heard it's not the kind of thing a guy wants other people to know about.
With anime stuff you'd want to go to Tokyo, I think.
I'd like to go to Okinawa someday, just so I can say I've been there. I'm sure it's really pretty though. Kyushu is, like, one of the most beautiful places I've ever seen and it's probably really similar to Okinawa.
I'd want to go to Japan to see some of their karate dojos and stuff. I watched this video of people training in Okinawa and it was just insane, some of the epic stuff they could do. Breaking sheets of wood with fingers, smashing up wooden baseball bats with a wrist strike and all sorts. Then of course there's all the anime stuff as well but yeah.