The store is in Hiroo which is a very affluent neighbourhood in Tokyo. It has a lot of embassies and a lot of foreigners living there. I went to Hiroo with some friends and there are a lot of foreigners on the streets, in star bucks, etc. There are doctor clinics with signs saying they can speak english...... we went to that star bucks and it was one of the few star bucks in Japan where the staff had no problem understanding us