Jaime L.
Yelp
I found this place on a website somewhere in the internets. I can't remember which, but I DO remember that it broke each part of Tokyo down by ward (Roppongi, Ginza, Nihonbashi, etc), and gave you 101 things to do in each.
They described this as a wonderful place to get authentic Japanese afternoon tea, however do note that they stop the afternoon tea at 5:00pm (17:00) and you can only get a wagashi paired with a beautiful and simple tea blend of their own making.
Both the wagashi and the tea we ordered (different kinds) were fantastic. The staff were incredibly responsive and helpful - although keep in mind we're talking about Japan, where this is considered normal and not out of the ordinary. They refilled the water in your pot twice, to give you three distinct flavors of the tea blend you chose. I chose one with Chrysanthemums, because they remind me of both a childhood book and a childhood friend I had who is very kind.
I highly recommend coming here and experiencing their afternoon tea. Although I wasn't able to, I did purchase Blend No. 5 (their most popular) to bring home as a gift - it's not inexpensive (I mean, name a restaurant in Tokyo that is, for real), but it is a real treat you should give yourself at least once.