You can catch sea bass at Tokyo Bay, it's very cool, if you are lucky, you may get over 90cm big fish. honestly it must be unbelievable experience that you may see so many fish in Tokyo and can enjoy fishing with seeing spectacular skyscrapers. I know some charters in Tokyo Bay, but probably the best one is Seakuro, www.seakuro.com, the captain used to live in Australia when he was young, so should be able to understand English. If it's warmer season, we can catch bream as well but it's huge, over 50cm is not uncommon. Large mouth bass in winter is very difficult.