Lin Yi mentally recited the student regulations one by one, searching for all content relevant to the Teaching Building...
Eventually, he found only one rule, and it was the last:
[Please take your health seriously. If you experience symptoms such as dizziness, blurred vision, or nausea during your time at school, please find the Dormitory Supervisor or your homeroom teacher before overnight. He will take you to the infirmary, and the school physician will escort you to the school entrance.]
But the rules for the Teaching Building also stated:
[After 21:00, it's forbidden to leave the classroom. Please study on your own until 07:40 the next day. During this period, if you see anything unusual outside the window or hear someone calling you from outside the door, please ignore it.]
"The rules are conflicting again...?"