Do Not Enter Forbidden Areas

Xiqin University is a university with a history of more than 300 years. However, shortly after the founding of the school, students have been missing on the anniversary of the school. This has continued for more than 300 years, and no one knows the reason... Zhou Xiaoruo is a freshman at Xiqin University. In order to solve the mystery of the disappearance of students on the anniversary day, and to find out the reason for her mother's disappearance, she joined the Elf Society, a secret organization that is listed as an illegal organization by the school and specializes in investigating missing cases on the anniversary day...