The writing on the signs is clearly Korean, and the blue bus in the distance is a classic feature of the South Korean public transport system. The architecture, including the brick walls and the specific style of the utility poles, is very characteristic of urban South Korea. I see a phone number on a sign that follows the standard Korean format. The overall atmosphere and the vehicle styles confirm this is a South Korean city. I suspect this is somewhere in Seoul or a major nearby city.

I am 85% sure.

then: guess