A set of quadruplets became the center of attention this summer in Jinan city, Shandong province, as they are always spotted in the same clothes. [Photo/IC]

When the quadruplets were born in 2010, their mother surnamed Jiao quit her job to take care of them. "I was exhausted when they were babies. But now when I am not feeling well, they help me with household chores," Jiao said. At present, Jiao operates a child-care business called "little dining tables" (xiaofanzhuo) - after-school care centers providing meals and place to primary-school student whose parents cannot take them home after their classes.

According to the father of the quadruplets, the children participate in extracurricular activities such as soccer, reading and handicraft. [Photo/IC]

The quadruplets play guitar at a practice room in Jinan, Shandong province, August 2, 2018. [Photo/IC]