My Family Regretted Letting Go

On my eighteenth birthday, my family promised me an unforgettable birthday. I asked a friend to help me record this moment. But until late at night, they didn't come. When my brother received my call, he laughed out loud: "Do you really think we prepared a gift for you? There's something wrong with your brain!" I returned home in despair, only to see that my family held a grand coming-of-age ceremony for the fake daughter. This birthday is indeed unforgettable. I gave up looking for family and applied to study abroad. But they panicked: "Have you forgotten that you are our family?"