It’s actually very simple. . The ghost this film talks about needs others to remember her. . She won't disappear. 1. The heroine is killed. . It's because the music teacher once had a student who was killed. . The murdered students turned into ghosts. . Now the music teacher and the heroine are very close. . A female student who was killed before. . Worried about the music teacher. . Forget about her. . And disappear by itself. So killed. . heroine. . . 2. The music teacher was killed. . In fact, it was the heroine who killed her. . She wanted to make the ghost who killed her disappear (after the death of the music teacher... no one remembered the former female student). At first he was strangled to death with a string, and later it was disguised as hanging. 3. The friend of the heroine's best friend dies. . They were all killed by the heroine. . She is afraid of disappearing. 4. The heroine feels that her mother is dragging her down, so she lets her mother jump off the building. . . Later, I felt that the music teacher looked like my mother and I liked the music teacher very much. . . . 5. Probably not gay. I just want to keep my friends to myself. . . 6. After her death her soul split into two. One is good and one is evil. . . 7. Ghosts only remember what they want. . . The kind person forgets the bad things she did. Later the evil one came to reveal the truth. . . 8. Leaning over is also to prevent yourself from disappearing. . . 9. She lost her voice because her friends had already started to have new friends and forgot about her. She began to disappear, and the first thing that disappeared was her voice. . . . What the heroine loves most is herself. . . . . .