Ordinary. They have received professional training, health certificates and professional certification from state organs. They are regular companies and their business scope is within the scope permitted by law. Silly elder sister Yuezi training center is formal. Silly elder sister is a domestic service provider that integrates prenatal consultation, maternal and child services, domestic nanny services, baby-sitter training and maternal and child peripheral products. Mainly engaged in home economics training and education, home economics services are refined to the training output of baby nurses, professional prolactinists, children massage teachers, elderly care, early childhood education and so on.