Japanese
It is in french, but I'm not so sure about in English or other languages.
the language people speak in Tokyo is 日本後 Nihongo (Japanese) the writen languages (alphabet) is Hiragana, Katakana, Romaji and Kanji
they use the Yen
One may read reviews for the Celestine Hotel Tokyo (in languages such as English and Japanese) on Hotels, Trip Advisor, Celestine Hotel, Booking, and Expedia.
Yen
only if the mp5 is a Tokyo marui clone. if it is a clone then it should be able to use any Tokyo marui accessory or part, because it is an exact replica of the Tokyo marui.
Herorin and condoms
There are lots of languages used on earth
use "ni imasu" examples Tokyo ni imasu, ( I am in Tokyo) nihon ni imasu (I am in Japan)
I belive the answer is YENS !!
You can read Tokyo mew mew a la mode at http://www.mangafox.com/manga/tokyo_mew_mew_la_mode/
People use the subway and train the most. There are also cars, but Tokyo is very busy and crowded, which makes it much faster to travel somewhere by the train.