I don't know if you answer these type of questions, but it would help if you could answer this. Japanese schools have signs outside their rooms. For example, there's 資料室 for "resource room". In the first episode of Gakkou Gurashi!, the opening sequence shows a sign that is covered with a piece of paper by the words "学園生活部". This anime is apparently extremely misleading in its content, and I was wondering whether the words behind it were a reference to something in the anime. Do you know if you can figure out what the words might be?
The picture is attached below: