In Tokyo alone, everything is in Japanese, Korean, Chinese, and English.
Similar to the way we have English, Spanish and French, and used the same way too.
Menus in Disney are in English and in Japanese, and all signs are in just English, however everything spoken is Japanese. They do have English speakers, but their English is pretty poor beyond the basic questions.
I had to go to the medical center there which they supposedly had an English translator on clock every hour. Lies, they had an English Medical phrase book on hand every hour.