On the Day I Broke Off the Engagement, I Awakened My God-Level Talent

My childhood sweetheart broke off the engagement in public, and she mocked me as a loser who will never wake up. I smiled and crushed the jade pendant of love, turned around and walked into the forbidden place. When she became a genius in the academy, I killed the ancient demon god with one sword in the secret realm. She begged me to get back together with red eyes, but I hugged the empress and chuckled: "Now you can't even be ranked as my maid."