Korean universities, especially those in Seoul, have extremely limited dormitories and fierce competition. In addition, in order to complete the annual enrollment plan and maintain the school's survival plan, Korean universities are desperately recruiting international students, resulting in more and more stretched dormitories in recent years. In the case of "more monks than porridge", the school can only provide dormitories for those students who are academically excellent or whose families are particularly difficult. In addition, only master students, doctoral students and students engaged in postdoctoral research courses can live in university dormitories, while it is almost impossible for language trainees to apply for on-campus dormitories. Take the new village area where Yonsei University is located as an example. It is located in the most prosperous area of Seoul, surrounded by seven or eight universities including Ewha Women's University, Xijiang University and Hony University, with nearly 200,000 students. The huge number of students and the particularity of geographical location directly lead to the difficulty of renting a house for students.