Move to the first floor and enlarge the knife sticking into the workbench.

If you tap to turn the memo, there is a torn area. Paste the crumbled paper there.

Join the shapes drawn on the 3 sheets of memo in a 3 x 3 grid.

Insert the round part , triangular part and square part into the holes on the iron box and pull down the right switch last.

Get the wire brush from inside.

Move to the elevator side, open the painting on the left side, and enlarge the dirty plate of the box inside.

Use the wire brush.

Open the box and get the parchment.