After Er Ya joined the list, the students began to study again. According to the inquiry of Xi 'an University of Posts and Telecommunications, Erya's elective points are not enough and need to be unified. Xi University of Posts and Telecommunications, referred to as Xiyou, referred to as Xi Posts and Telecommunications, is located in Xi, Shaanxi Province. It is an ordinary institution of higher learning that focuses on engineering, features information science and technology, and has a coordinated development of engineering, management, science, economics, literature, law and art.