Turning twelve and a half shouldn't be the most exciting birthday in your life. It's a half birthday, after all. But Harper is thrilled because she is getting the biggest gift of all; her parents' approval to finally get social media accounts. When Harper goes to post one of her first TikToks, she sees a birthday wish filter she has never heard of before. Curious, she clicks on it . . . and ends up fast-forwarding in time to her twenty-second birthday. being in her twenties means having the freedom she always wanted, earning money for the glow-up she didn't know she needed, and working for her idol! But Harper soon discovers that a lot more has changed than she expected - including the person she wants to be. Will the filter help harper get the life of her dreams? Or will there be more glitches from growing up too fast?