If you haven't picked it up from the main page, the setting is Shibuya Shopping District in Tokyo, the Reapers Game area. Walls block your path and wall reapers require homage tasks to get through them, and for some reason you can't seem to leave Shibuya. There are a few stores where you can buy things, but for the most part, people in the RG(Real Ground) can't see you. You can scan their thoughts, you can control fashion with your pins, and you can take out Noise. Reapers are everywhere, just because you don't see them doesn't mean they're not there, lurking and waiting for the moment you let your guard down to kill Erase you.