I decided to go to one Asian city with a two day trip or a three day trip as many times as possible.
On such trip, I can visit Seoul, Pusan, Shanghai, Beijing, Dalian, Chengdu, Qingdao, Taipei, Manila, Jakarta, Singapore, Kuala Lumpur, and so on (They have direct flights from Kansai airport).
I can enjoy English in Hong Kong, Singapore and Manila.
It is easy to communicate in Japanese, staying at the hotels in Pusan and Taipei.
Mandarin is the standard Chinese.
I can hear Mandarin not only in Beijing but also in Taipei.
But in Shanghai or Hong Kong, people speak local Chinese.
As Shanghai is the top fashion city of China, it is not easy to work in the fashion industry for non-Shanghai language speaking people