In Tsukiji fish market, you can enjoy fat tuna. 70% of store in the market deal with tuna, because tuna is king of Sushi.You can eat not only sashimi (raw fish), but also grill ones in street stand. If it's sunny, I will take you to beautiful Japanese garden, next to Tsukiji market. At teahouse there, you can drink powdered Japanese tea (Matcha), used at tea ceremony.Asakusa is traiditonal fancy town, and you are looking for Japanese traditional items as suvenior (folding fan, Chopstick, wind bell Japanese lantern and so on), it has big shopping street good enough for you. Then you can see Sensouji temple, very If you have an interest in wearing Japanese traditional clothes (Kimono), you can use the service of rental kimono (3000 yen).Please enjoy Japanese cultural experince in Tokyo!