"So, does that mean that after the student from Room 404 went insane, no one else has lived there since?"
"That's right, although the school didn't want to believe it, this situation did occur. First, a student committed suicide, then another was mysteriously killed, and eventually, the students who lived there went mad. Actually, not long after the previous director passed away, I was promoted to the head of the Students' Affairs Office. Because I had come to believe in the existence of spirits, I suggested to the school that we seal off that dorm room. At the time, there were plenty of dorm rooms, so we just closed that room up," Director Cao answered.
It made sense. Dorm Room 404 kept having accidents, one after the other. It definitely wasn't normal. Director Cao seemed to be a sensible person. Perhaps it was because the school leaders at the time also started to lean towards the idea of Ghostly Apparition causing trouble, which is why they agreed to Director Cao's suggestion.