I'm guessing this was taken in the little area just north of Shinjuku Station. When I first came to Japan in 1995, I used to eat ramen there on the way home after a night of drinking. Fun times. Its changed a lot since then though. I don't think there's any ramen places anymore - mainly sushi and yakitori for the tourists. Now almost all the staff working in those restaurants are Chinese or from other parts of Asia, which is not necessarily a bad thing, but it makes the whole place feel like a bit of a tourist trap rather than an authentic cosy corner of Tokyo.