"Excuse me, here's your delivery." This the most spoken sentence coming from Yao Zhigang's mouth in the recent half year.
No one can imagine that the 51-year-old deliveryman rushing across skyscrapers and alleys used to be a bank manager a few years back, wearing suit and tie every day.
CGTN accompanied Yao for a day in central China's Changsha city to discover some interesting facets of his life story.
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