It is true that Serene Education bought a teacher qualification certificate. Relevant public information shows that the so-called enterprise WeChat used by Serene Education is registered in Beijing Ousi Online Education Technology Co., Ltd. and its registered address is in Haidian District, Beijing. But their employees claim to be Xuzhou companies, and Beijing companies are registered in Xuzhou. This is a big problem, and this institution has Xuancheng teacher qualification certificate, psychological counselor and other courses, but they have not seen any evidence of running a school. This company has a high probability of running a school.