Disability is no barrier for this delivery man

"The job has flexible working hours so I can have more time to be with my son and wife," he said.

"There are misunderstanding and bitter moments, but most of the time I feel the warmth from strangers."

Chen usually works seven to eight hours a day and walks over 40,000 steps. Once he even climbed up 25 floors in order to deliver a parcel in time.

The heavy work has already cost him about 20 crutches.

"I will keep working hard because I want to give the best education to my son," he said.