Cafe Andersen 桜木町 on the map.
We went to that coffee shop and bought something on the first floor, thinking we could eat on the second floor, because we ordered coffee. For my surprise, my wife and I were kicked out because we could not eat the things from the first floor on the second floor, there was no information about it whatsoever. Had they told us we couldn't eat on the second floor, or at least had they told us in a nice way, we would have understood. Both servers on the second floor were extremely rude, and it is not that we didn't buy anything there, we bought several things! Really bad experience, if there was a zero here to rate that place, that would be the one I would've chosen!