Is the Sunroute Plaza Shinjuku Hotel a close walk to Kabuki-cho (red light district) and the trains?
From reading the location description from the website it seems that the hotel is on the west side of the station but only 100 meters from it. So access to the station is very good but the only problem is Kabuki-cho is on the east side to the north. Shinjuku station is one of the biggest in the world and it’s a little hike from the southwest side to the northeast side. If you hustle, I’d say you could do it in 10 minutes. If you’re stumbling back drunk, it could be 15-20 minutes on foot.