The Villainous Tycoon's Beloved ABO

Lin Xin transmigrates into an ABO novel as an Omega born into a wealthy family but utterly lacking in presence. The original owner has a crush on the male lead, Lu Jingchen, but he coldly rejects her, and she eventually becomes a disposable extra. After transmigrating, Lin Xin has no interest in Lu Jingchen. Instead, she's curious about Gu Cheng, who will eventually become a powerful villain in the story. At this point, Gu Cheng is still an illegitimate son exiled by his family. Because his pheromones are unstable, he's been told he'll never differentiate, and he's bullied at school. Lin Xin takes the initiative to get close to Gu Cheng, offering warmth and help when he's at his lowest. Gradually, the two become friends. But as they spend more time together, Lin Xin discovers that Gu Cheng's pheromones have a fatal allure for her, while Gu Cheng develops feelings for her as well. During an accident, Gu Cheng's pheromones erupt completely, and he differentiates into an Alpha more powerful than even the top tier! The wheels of fate begin to turn. The boy who was once bullied eventually grows into a man standing at the pinnacle, while Lin Xin, who has been by his side all along, finds a love and protection uniquely her own.