Leng Xiaoyao saw a young man frequently get in and come out of Xi Keyi's apartment, but the young man wasn't Leng Yecheng.
After the young man walked into Xi Keyi's apartment, he didn't come out until the next day. It was a single apartment and they were alone together. Without further thinking, Leng Xiaoyao figured out what they were doing.
Upon thinking that Xi Keyi was dating another man while being Leng Yecheng's girlfriend, Leng Xiaoyao was furious.
She didn't know whether Leng Yecheng had slept with Xi Keyi. If not, it wouldn't be a big deal. If they had, it would be disgusting. Xi Keyi was like a w*ore in Leng Xiaoyao's eyes.
However, before she had solid proof, Leng Xiaoyao had to curb her anger and continue to investigate it.
After that, Leng Xiaoyao found the young man's face and took a screen-shot of him. Without delay, she searched for information about him.
Before long, she learned about who he was.