Natto

Dear Mr. Jiang Wu,

Mr Eto, I have heard that natto(�[��) is a local flavor in Ibaraki. Do you know any good place in Tsukuba to enjoy genuine natto?

Natto is not just a local food, but also popular in Japan everywhere.
You can buy natto every food store.

You can order natto set (�[����H) in Yoshinoya.
http://www.igougo.com/review-r1027905-Yoshinoya.html

If you are brave (VERY brave) try the Natto set (fermented bean curd).

As far as I know, there's no specialized restaurant for natto in Tsukuba.
You can go Mito for genuine natto restaurant.
http://wikitravel.org/en/Mito

Best Regards,
Kouichirou Eto