You Treat Me Like a Substitute, So I Found Someone New. Why Are You Crying?

【Reunion after a long separation | Rivals compete to win her back | Male lead becomes the other man for love | Second male lead takes the crown | Second male lead's perspective: Ten years of devotion, secret love finally comes true】 Content warning: The heroine isn't a virgin, while the hero is, and she's somewhat of a heartbreaker. Don't read if that's not your thing. On the eve of her wedding to Shen Jingyan, Xu Yi accidentally overheard him talking with a friend and learned that she was only his second choice. His words, “As long as Sisi is happy, it doesn't matter who I marry,” pierced her heart like a thousand arrows. That very night, she blocked and deleted him. They would never meet again. They reunited five years later, on the eve of her wedding. The once-unattainable young heir lowered his head and pleaded with red-rimmed eyes for her to come back. “Marry me. Whatever he can give you, I can give you too.” Zhou He, who had been drinking, couldn't stay calm. He raised a bottle, ready to crack it over his head. “What kind of thing is that to say? If I can give her everything, why would she switch to you?!” He was trying to steal his woman right in front of him. Did he think Zhou He was dead? Chen Yu gave a cold laugh and took her hand. “So what if I steal her from you? If you can, steal her back.” The story starts five years later, and it's pure wish fulfillment! The heroine is a brilliant science and engineering prodigy who stands on her own and succeeds in her career without being put through the wringer.