Whose son is Xiao Jia in Beijing?

Jia Yunzhe's parents are ordinary workers, too. The family only relies on his father to make a living, and his father earns three or four thousand yuan a month. Faced with the high cost of treatment, the Jia Yunzhe family had to give up treatment. Although Jia Yunzhe didn't grow up, Jia Yunzhe didn't give up. Now Jia Yunzhe is still a boy who is particularly optimistic about sunshine.