The movie Big Hero 6 takes place in and around a city called San Fransokyo, which is obviously an amalgam of San Francisco and Tokyo.
Is there a explanation why this city exists, both in and out of canon?
In canon, is this our world where somehow Tokyo and San Francisco combined? If so, why and how did this happen, and where is the result located?
Out of canon, was there a reason to exotify San Francisco or westernise Tokyo, instead of picking either city?