To unlock this achievement you need to get the 100% chaos ending. This requires giving each visitor specific fortunes. To give these fortunes, use the runes in the following order (the spoiler contains the text that should appear):
Visitor One: Wall, then Cloud
Visitor Two: Flower, Snake, Skull
Visitor Three: Hands, Eye, Fire (multiple combinations work, just don't end up with an eye alone)
Visitor Four: Cage, Rope, Sun, Key (the key only appears if you've done the correct fortunes for visitors 1-3)