Married First, Fell in Love Later with My Rival Who Differentiated into an Omega

In the capital, everyone knows Shen Ci and I are enemies. Other childhood friends grow up as a perfect match. We couldn't stand the sight of each other. As kids, we got into a huge fight over a limited-edition mecha figure. As adults, we climb into limited-edition mechs and enthusiastically beat the hell out of each other. It's not like we have some deep-seated grudge. There are only two things I can't stand about him. First, he's such a show-off. Second, he's got a razor-sharp tongue. I'll never forget my sixteenth birthday. I invited the Omega I had a crush on to my birthday party, but they turned me down because they were afraid Shen Ci wouldn't be happy about it. Huh? The Omega I like is in love with Shen Ci? What a humiliation! I was so upset I wouldn't even cut the birthday cake. I went looking for him, ready to pick a fight. Shen Ci didn't care. Instead, he mocked my taste. “That's the best you can do?” I was furious and secretly swore I'd find an Omega even prettier than that one, just to make him jealous. I spoke too soon. Later, I really did find one. The terrifying part was that the Omega was Shen Ci, after he presented as an Omega. Even more terrifying, we're married now. Theme: Work hard and live life to the fullest