For those who are interested in which hotels im staying ^^
02/16 till 02/20: Kyoto -
Kyoto Dai-ni Tower Hotel 02/20 till 02/22: Hiroshima -
Hotel Flex 02/22 till 02/28: Tokyo -
Asia Center of Japan I think the hotel in Tokyo isn't in a such a bad location. It's close to the Twin-Tower building too.
For those in Germany: Spoke with the guys from my health insurance today. There is no "Auslandskrankenschein" (certifacte of a health insurance for foreign countries) for Japan. I do have a health insurance for foreign countries from my credit card but it's so strange. Going abroad without this little piece of paper.
Just wanted to inform you that if you go to Japan, you don't need to worry about Michael Mittermeier, the AOK and "Do you have a Auslandskrankenschein?" ^^