Nanny industry. In some first-tier cities such as Beishangguang, the Lunar New Year is basically spread all over every family, and second-tier cities are also generally involved. Because of the acceleration of aging in China, more women leave home to work, leaving only the elderly and young children at home, so they have a new moon and a nanny to help look after the elderly and children. Young parents can go out to work without worrying that the old people are left unattended and the children are left unattended. Moreover, the wages in Yue Yue are uneven, and they are divided according to Yue Yue's experience, qualifications and grades. Golden Moon has the highest salary, up to tens of thousands of yuan.