Jiao Yanyan was not raped. She deliberately told Li Luo about it, so that Li Luo would misunderstand it. As for the recording, it was used by Pan Xiaogang to frame Chi Haidong. This story is in episode 39 of the TV series.

Episode 39 Synopsis: Chi Haidong and Cao Gankun attend Jiao Yanyan's wedding together and learn that Pan Xiaogang is Yue Qun's legal adviser. Meng County also expressed his gratitude to Chi Haidong. Cao Gankun and Tang Meiyu sit at the same table. After seeing Cao Gankun's password, Tang Meiyu turned on her mobile phone and confirmed that San Xiao was Shi Qiang. When Jiao Yanyan sent Luo a bouquet, she took the opportunity to tell Luo Luochi that Haidong raped her, and Luo Luo was furious. Pan Xiaogang designed to discredit Chi Haidong, who was punished by the Lawyers Disciplinary Committee. Luo Wei helped Chi Haidong to trace the truth of the incident, and Chi Haidong's punishment was lifted. Chi Haidong thanked the ungrateful Luo Chen. Tang Meiyu came to Shijiang's house for a pretence to ask about San Xiao.