Is * * * undercover. According to the plot of Black Soil and Hot Blood, Song Huimin is Jiang Liangyuan's mistress because of her plump figure and changeable customs. At the beginning of knowing Jiang Liangyuan, a Kuomintang, he wanted to use his influence to achieve prosperity and live a solid and stable life. His real identity is * * * undercover, which was later revealed, improved and reborn. He opened a noodle restaurant opposite the Sino-Soviet Friendship Association, formerly known as Huang Guilan. Black Soil Beach Hot Blood is a spy war drama produced by Yinghuawenchuang Culture Media Co., Ltd., directed by Grace Wai Wong and starring Liu, Zhang and others.