I Track Down My Ex for Child Support Four Years After Our Breakup

Cheng Shu's adoptive mother suffers from a rare condition called Omega Pheromone Dysregulation. After graduating, Cheng Shu started a small drug development company dedicated to researching the disorder.

Drug development is already difficult, especially when researching a rare glandular disease. And she is a Beta, with no connection to pheromones.

After three years, Cheng Shu's Peace Biotech finally burned through all the money invested by the angel investor. Just then, Ling Pharmaceuticals, a major company specializing in gland research, extended an olive branch. Cheng Shu hurried over, full of excitement.

In an elegantly decorated cafe, the refined and aristocratic Omega heiress of the Ling family told her that after Peace Biotech was acquired, it would no longer research the disorder, and Cheng Shu would have to leave the company.

Naturally, Cheng Shu wouldn't accept those terms.

Just then, a host's voice came from the screen above the bar: "We hear that Ling Pharmaceuticals is about to form a marriage alliance with the Si family. According to an insider, the Ling heiress and the head of the Si family were university classmates. Their pheromone compatibility is as high as 87 percent, and both are handsome and beautiful. One can only imagine that their children will be truly exceptional."

The Ling heiress gave Cheng Shu a faint smile.

Cheng Shu understood. She'd thought the woman looked vaguely familiar from the start. So she had come to avenge the "stolen love" from five years ago?

Cheng Shu sighed. What a wasted trip. She lowered her head and gathered the papers on the table.

Just like back then, many people had been astonished that Si Yi was dating her. They'd waited to see when he'd dump her, as if watching a show. The gap between them was so great, they thought she couldn't hold on to such a high branch for long, though they were also amazed she'd managed to climb it at all.

The woman across from her thought the same thing. It seemed she'd never gotten over that grudge, and even as Cheng Shu was about to leave, she still wouldn't let her go: "A poor teacher for a father, a sick mother, and a girl abandoned by everyone. I suppose you really are a suitable family."

Cheng Shu's hand paused as she gathered the papers, then continued putting them back in her bag. She stood up and stopped beside the heiress on her way out. "Si Yi may look cold and aloof, like he's completely uninterested in sex, but actually... he's pretty good at it. As someone who's used him many times, I hope you enjoy. By the way, he was quite potent back then. If he can't manage it now, there's nothing he can do about it. He was young at the time, after all. I'm sorry I got to enjoy Si Yi in his prime first. Of course, if he's still good, that's because I helped train him. Remember to thank me when you use him."

Si Yi's buddy, sitting at the next table, spat coffee all over the place in front of him. "Your ex-girlfriend..."

Si Yi's expression remained blank.

Female lead: Wildly resilient, from humble roots

Male lead: Privileged and aloof

Rekindled romance after a breakup, with a three-year-old daughter

Theme: Science and rules.