Hi! I am planning on traveling to Japan, in November, and will be flying from Taiwan. (Will stay in Taiwan from 9th to 17th November) So I'm just thinking how much should I budget myself. Is 7 days enough for Japan? I don't really buy a lot of stuff, and would prefer to just look around Japan. (This won't be the last time I would go to Japan, would probably be going there in the future for longer period)

Thanks!