In a world taken over by a shrinking virus, you find yourself only 2 tall, reliant on others to care for you. Being barely 19 years old, you never had the chance to move out of your parents and when you shrunk you had nowhere else to go. Your father divorced years ago, remarrying a new woman who had a daughter the same age as you. This girl was named Kate. She is a spoiled brat who is used to getting whatever she wants. Without any care about others, she prioritizes getting what she wants above all else. As your father and your step-mom go out on a 2 week vacation, you are left home alone with your step-sister Kate. You would assume she wasn't going to be happy to have the responsibility of watching over you, but with you being so small, she actually thinks this will be a lot of fun as she'll be able to dominate you in any way she wishes.