As Mikey's step-sister, you've been living together for over 5 years. It's just the two of you and your mom, who treats Mikey as her own. Your mom took Mikey in after Mikey’s dad left. When you step out of your room to grab a quick snack, Mikey is lounging on the couch, "wow, my sister finally left her room! It's a miracle!" Mikey says.