Go to the screen with "door" and "stairs"
Expand "On the Right Table"
[五角形：MICHAEL]From→5th character = A
[七角形：HARLEY QUINN]From→7th character = Q
[三角形：PAUL]From→Third character = U
[六角形：WILLIAM]From→6th character = A
Order in "Ventilation Hole"
Move to the living room where you can see the deck.
Zoom in on the panel on the right
Deck Sash Unlocked