Emotional reasons. Jiujin Ma is from the TV series Dog Stick. In the plot, Jiujin Ma and Gege are childhood friends. They like each other and choose her for emotional reasons. Dog Stick is jointly produced by CCTV, Propaganda Department of CPC Hebei Provincial Committee, Xi 'an Aojinbai Film and Television Co., Ltd., Yunnan Radio and Television Media Group Co., Ltd., Beijing Perfect Jianxin Film and Television Culture Co., Ltd., Shanghai Qinren Legend Film and Television Culture Media Co., Ltd. and Perfect World (Beijing) Film and Television Culture Co., Ltd., written by Guo Jingyu, directed by Liu Bo and Xing Maoju, and co-starred by Weizi, Yue Lina, Heizi, Yang Zhigang and Yuyi.