Going to Tokyo is not just making a list of the places you want to visit such as temples, parks, shopping areas, it also mean making a list (a long one) of the food you want to eat (sushi, ramen, taiyaki, etc) and the restaurants you want to visit.
PS. I bought this 'Eating in Japan' book at the airport (Narita). Cost ¥1000.
Sharing my list of restaurants (and some of the food we ate) during our trip to Tokyo:
1. RAMEN. Summer was just starting in Tokyo (late June) and the weather is still cool to eat ramen so off to Ichiran Ramen we go. Ichiran is one of the popular ramen shop in Japan, and in Hong Kong, Brooklyn, New York, Taipei, and Taichung. I do love the rich-tasting broth at Ichiran. Btw, you pay at the vending machine and it only accepts cash. Not sure if you can use Suica or Pasmo though.
Aside from Ichiran which we went to twice, not to mention bought boxes to bring back home, we also had ramen at an old shop near Sumida river. The place is quite small and can only fit about 9 diners and it manned by an old uncle who doesn't speak English.
2. DANGO or rice flour balls. We had our first taste of dango at Nakamise Shopping Street, Asakusa. There are many variations of dango, we got one with sweet soy sauce glaze, and a grilled one that's rolled in roasted rice flour powder. It has a chewy texture and is a bit bland. Tastes comes from the syrup or powder.
We also had another round of dango from the seller near Donki Asakusa.