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Let me continue with signs from my DAY trip to Nagano on the 25th (I keep breaking the rule of one photo a day).

Leaving Shiojiri, Nagano, we took the Chuo Main Line connecting Tokyo and Nagoya and arrived in Tokyo. We didn't come up with any idea of what to do in Tokyo for a while; the terminal station of the line was Shinjuku, which gave us a thought of visiting the Tokyo Metropolitan Government Building located at the doorstep of the station.

Found this at the office. This is a very important notice for foreigners coming to Japan.