Shake Shack Japan has two shops in Tokyo.
One ( the first one ) is in Jingu-Gaien and the 2nd shop is in Ebisu.
Apparently, there are still lines.....I can't wait that long, meaning I have not tried them yet.
Yes, I just wanted to mention this since I wrote I started listening to Danny Meyers' Book. ( The founder of Shake Shack )
We have Wendy's, Burger King, Taco Bell, KFC etc.... have heard that In -N- Out is coming soon? ( I forgot where and when ..... )