<Chinese TV Series NOW> ”Kyouhyo -End of the Beginning-” EP9, An Xin begins to suspect the Gao brothers = Synopsis / Spoilers

※This article contains spoilers and synopsis.
In Episode 9 of "Beginning," An Xin begins to become suspicious of the Gao brothers.
An Xin heard Gao Qiqiang's story at the noodle shop and began to suspect that Gao Qiqiang and Gao Qisheng were brothers.
Meanwhile, the police are investigating Gao Qiqiang and Tang Xiaolong, and DNA matching reveals that one of the gangsters is Tang Xiaolong.
An Xin was sorting through the clues surrounding the electrocution death of Xu Lei and the murder of Huang Cui Cui.
Tsao Chuan and Li Xiang were waiting for Gao Qisheng's class to finish at Chen Shuting's house. Chen Shuting told Gao Qisheng that Taishu had called.
When Gao Qiqiang answered the phone, he heard from Taishu the hiding place of Bai Jiangbo's driver. Gao Qiqiang threatened Xu Jiang on the phone and told him the location of the kidnapped Tang
He ordered the release of Xiao Hu (Tang Xiaohu). Meanwhile, An Xin comes to Gao Qiqiang's former to look for clues about the incident.