I haven't been to Tokyo in more than 5 years. I'll be there for a single night (a mega MR, but that is a different story) staying at the Grand Hyatt Tokyo in Roppongi Hills.

Last time I was there I was taken by a (now departed) friend to a small, what I believe to be Yakitori restaurant at or near Roppongi Crossing. I remember having to duck into an alley and go up a set of stairs. It was a small place with maybe ten seats. I remember that it shared a WC with a dentist office across the hall (Dr. Watanabe, not joking). There were pictures of american celebrities (mainly diplomats and presidents) on the wall who had visited.

I almost think I could find it by memory, but a lot of time and miles have passed since then. Would love to find it again. Help greatly appreciated