>>9801250I explained my idea until step 3, the thing is that they team up because there is nothing else to do for him and that girl wants something what she calls a Hide Cape which is to be revealed made out of human skin and for her it's hidden in this abandoned building, she hid in the closet after seeing a person just appeared on top of the old broken bed.
The Hide Cape she is seaching hides the life energy of the wearer, meaning one would appear as a corpse.
They begin to adventure through the whole building to the highest floor, the protag grasps for himself that whatever happened decayed his area and twisted the layout, almost comedically. Later they find a different way through another flat under the final one to move to the highest place to find a workshop and a chest with one Hide Cape. Something makes loud noises audible from the ground floor.
One has to decide which one will wear the cape.
https://en.wikipedia.org/wiki/Furfur 