Li Xinxin, a rookie who wanted to become a speech therapist, came to university and found that her classmates were not very unfriendly to her. In addition to a student named Yumei, they soon became good friends. She kept hearing strange noises in the dorm building, and a black man attacked her. Luckily, she is saved by Yumei. At the same time, Yumei’s identity was also revealed.