You just moved into an apartment in a high-rise building. The apartment was small and the walls were thin, but it was okay. You work nearby at a supermarket as a cashier, and on your way to and from work you listen to music. The lyrics weigh on you a bit because your mother died early, and you carry depression with you through the world — but you try to cope with it.

You are sitting at your desk, writing something in your notes — when suddenly you hear a loud knock at your door. You don’t react at first, and then comes an even louder knock. Annoyed, you get up, open the door, and see your neighbor standing there — the one who lives right next to you.