Who played Xiaoqing in De Renjie (Part III)?

Detective 3 was created by the original crew of the first two plays, with Qian as the screenwriter and director. Guanhua Liang and ZhangZijian play the leading actor Di Renjie and his assistant Li Yuanfang respectively, while Dong Xuan plays two roles for the first time in Detective Di Renjie 3, playing two twin sisters with diametrically opposite personalities, namely, the indifferent killer Yungu and the simple girl Xiaoqing, while Xu Qian continues to play Zeng Tai, a student of Di Gong.