I still dont know how to open the door...I'm just stupid...
which door? if you mean the door at the top of the spiral staircase, it's impossible to open!
The door when you first enter, with the dude and the cat?
to open that door, you need to get a book from oliver (the mouse) in the library, give it to kyungsoon (the hyena), then talk to oliver again :)
OHHH Ty! Im an idiot!