If you have 7 days, you will be able to deepen your interests in Tokyo. For example, if you like coffee, you can go around best coffee shops in Tokyo. If you are into art and design, you can visit great galleries in Tokyo.
There are so much attractions in Tokyo, adding to usual touristic places. I think it is better to decide what to do according to your hobbies and interests.
Popular touristic places are below;
- Tsukiji Fish Market