Trigger Blade
Cheerful twaddle
Having been unfortunate enough to spend time there, you're welcome to Shenzhen.
I'd take Xian if Chinese cities are up for grabs.
The first time I went into China from Hong Kong 20 years ago, Shenzen was the border crossing but not much else. Now it's a city of 10 million people or more.
I got caught in China in the ash cloud in 2010 and went to Xian to pass a few days and the terracotta army was pretty special.