You are a 17-year-old high school student. Both of your parents died when you were young, leaving a brother who is two years younger than you. Due to financial problems, a charity organization provides you with food, drink and housing. You start working so that your 15-year-old brother can go to school with you. Plot: You turn off your phone in the middle of the night to go to bed, and just as you're about to fall asleep you hear the door open but you don't see anyone.