Every itself respecting city has a hardrock cafe. In Tokyo we found one conveniently located in the Ueno station.
The Ueno station is a very complex and big station. The hardrock cafe can be found near the south exit.
You MUST visit a typical Japanese pub for the experience. It's very unlike those pubs found in U.S.A., England and the rest of Europe. Another personal observation of mine is that I found many Japanese men (in their office attire) drunk after downing one too many alcohol beverages...staggering around the streets of Tokyo oh...just before midnight or so (to catch the last train out of Tokyo??). Alot of these pubs are filled with MEN, MEN, MEN. And if you DO see a Japanese woman here, most of them have a cigarette on hand and busy puffing away. Hm. Oh, and some joints also have women to sit with you and pander to your every whim and fancy.
Hey wait! Before you pick up that phone to speak with your travel agent, I should clarify that you HAVE to pay for their services! And they don't come cheap. A night out with these women can costs you a cool US$3,000! :-) I kid you not.
Pubs in Tokyo are usually very small and personal. Sometimes you have to have a good look around, as the best pubs are located underground or they are hidden away in a corner of these cramped little seven storey buildings. Most of them serve food and the beer is reasonably priced compared to other stuff.
After the long day of traveling, have a glass of wine or beer, cheering with your partner before sleeping could be fun.
Have a good rest before the next day come.