Xia Jianqing returned home. He found the old city was out of date. The delayed support and service of the city made him feel conflicted, and he became a "caterpillar" who was picky about problems on the Internet. Along with the development of the city improvement and the innovation of grassroots governance, Xia Jianqing unknowingly began to participate in community welfare services. Many ridiculous and warm stories played out with the neighbors.