Chen Chen (not his real name), 10, like many other children living in Sun Village in the Shunyi district, spoke in a low voice and kept his eyes on the ground when answering a visitor's questions.

But he shared his snacks generously, even though chances are that he does not get snacks that often.

Chen Chen is one of about 120 children in Sun Village, whose parents are in prison and who have no legal guardians to take care of them.