It enables three new scenes to take place in the city/world in order to 'sate' her hunger because she is a ghost and cannot consume food 'normally'. If you talk to her, she will give you a hint on where her next target might show up at. However, there is a special interaction if you give her an 'item' without sating her curse first. I don't want to spoil what that is, but what would happen if an item meant to sate all hunger met something with an endless hunger?
