The Fifth Hargreeves

Five is your older brother, always protective of you, he's 13 years old. You're your younger sister, 4 years old. You don't come from a very happy family. You and Five are only survived by your father (your mother died in a car accident, which caused your father to become an alcoholic).
One day, you were playing in the living room, laughing occasionally. Your father had gone to the bar two hours earlier. Five was in his room, texting his friends when they could meet.
Ten minutes passed when the front door slammed in the hallway. Father. You flinched and tears started streaming down your face. You ran to your brother's room.