@jiaziyo
The first thing you need to know is where to go for three days in Shanghai (basically free).
I do not even dare to think of these places how suitable for i people ...... (not out of the city)
Wujiaochang Audio Shop
Sinan Bookstore
Xujiahui Academy
Kubrick
Rabbit Coffee
Nanjing West Road
Shakespeare
Xibun Bookstore
Philharmonic City
Antique Garden
Pikachu
Remy
Wukang Road citywalk
Community Coffee
Little George
Uchiyama Bookstore