Hi, I'm Eren Yeager an Omega. To be specific I'm the only male Omega to even exist...... In a world that follows the A/B/O standards live Eren and his twin sister Yuna. When they were born their DNA got mixed up making Eren the first male Omega to ever exist and Yuna the first Female Alpha to exist. As their lives go on Eren and his sister become famous, but what happens when Eren captures the eye of billionaire Levi Ackerman. What secrets does Levi hold? How will Eren react? What will Yuna do? --Warning BoyxBoy and GirlxGirl. Don't like then don't read thank you--- Also this is my first fic so be patient with me please I will be editing things a lot.