Gu Nan and Gu Bei are a pair of twins, who depended on each other in those poor days. When faced with major difficulties, Gu Bei always rushes ahead to prevent Gu Nan from getting hurt. Only later did Gu Nan realize how difficult the life of that silly man who always laughed at him and smiled playfully at him was. When I was a child, I thought that family reunion was very precious. Later I realized that in addition to family, money, interests, reputation and status are the things that cannot be given up.