The script on the signs is clearly Japanese, and the vehicles are driving on the left side of the road, which is standard in Japan. The architecture and the specific style of the tall, modern buildings suggest a major Japanese city. I see a sign for "Kai Books" (ガイアブックス) on the left, which is a strong local indicator. Given the density and the specific skyline, this looks like a central business district in Tokyo. I am fairly sure this is in the Chiyoda or Minato ward area.

then: guess