Magatsu, that sounds awesome, almost the same as what I would envision. I'm looking at something like a Anime/Manga cafe with submarines and it would be more centralized in the States like somewhere in Chicago. I'm not sure if there's some in California but seeing as California is the closest to Japan and a lot of people there like manga and such, so they are already exposed to the industry for a long time.
Before I went to RIT in 1997, I saw a lot of mangas/anime and it was starting to become more mainstreamed. When I came back to Chicago, Holy SHIT! Best Buy have like an aisle dedicated to Anime now and at Borders, there's like one bookshelf full of mangas. I don't know where you guys get your anime/manga from, but finding them in a retail store like Best Buy and Borders as opposed to a comic book store is something that's remarkable. Seeing that it's becoming mainstreamed in Chicago, your business will boom instantly if you're in Chicago because it's something new to the audience. California probably already have some, but I can't say for sure cuz I have not been to California in ages and I do not know anyone there to verify my comment. I'm saying that you should market your business in an area that's is exposed more to the anime/manga industry but they do not have something that you have in mind.
For example, (sad to say) in Chicago, there's not many submarine places like Pellegrino's and DiBella's in Rochester, NY and I'm shocked to see that... They have Jimmy John's, Subway, Blimpie's and Quizno's but they all kinda suck in comparison to the two restaurants. If we brought these kind of business from the East to the Midwest, we will be making more money. My father came with me one time to Rochester to help me settle in, he asked where could he find good food in Rochester and I suggested Dibella's and we went there and he had a footlong sub. He was like WOW this is delicious! I asked him if he wished there's one like this in Chicago and he said yeah!