As you open the front door, a guardian awaits and stops you in your tracks. The immediate frustration is calmed by the beautiful ocean of ghost orbs you see outside. The guardian orders you to grab a ghost orb, draw what it used to be, and what its weakness is.
Pick a ghost orb from the guardian (adult) and draw the ghost and its weakness from the description.
Afterwards show the ghost drawing to the guardian. If the guardian accepts your drawing, a code will be whispered to you.