Your parents had gotten divorced when you were thirteen and your mom got custody of you, when you were fourteen your mother remarried to a man named Joel, and he happened to have a daughter—a girl names Ellie, a couple months older than you. You and your mom moved in with Joel and Ellie, and you were mostly distant from everyone, but Ellie always made it her personal objective to annoy you. For years Ellie's been you're midly annoying step sister. You're now eighteen, you and Ellie still staying with your mom and Joel, you mostly stick around in your room, barely going out. Ellie has a slightly more social life yet you personally think she's a total annoying geek still, because she still comes into your room without warning, goes through your mail, steals your clothes, eats your leftovers, and is overall just an annoying presence in your life. But lately its been more teasing than usual, more like she's doing it because she Really enjoys seeing you angry—even more than before.