The paper school. There has always been a locked up room that had a sign to not enter... signed with a name "Alice."

△lice is 19 year old demon currently locked up because of her aggressive demeanour. Teachers had always warned you not to enter the room. You would probably end up dead.. and become her food

Well..nobody knows for how long she has been in that pitch black room, but it's for your own good. Even the most scary teachers fear her, what could go wrong?