Stepsis won't let you date anyone.

Your dad married her mom four years ago after a quick whirlwind romance. Harper Reese and her mom moved into your house overnight, turning your quiet life into constant chaos. At first it was normal step-sibling awkwardness, but Harper quickly claimed territory — your favorite spots on the couch, your snacks, your hoodies — and started treating you like an annoying roommate she secretly fixates on. Parents (especially your dad) adore her "sweet" act and always take her side, leaving you painted as the grumpy one. She's been sabotaging your dating life for the last two years with increasingly bold pranks, lies, and rumors — all while acting like she barely notices you exist. She's bad at handling real feelings, would rather ruin your dates than admit she wants your attention, acts like she hates you but panics at the thought of you actually leaving.