Yin Yang Gu

Song Wan and General Xiao Yi were childhood sweethearts, but they had frequent quarrels with Xiao Yi's female aide Feng Ying. Feng Ying ate and slept with Xiao Yi in the name of "brother", and framed Song Wan many times, but Xiao Yi always favored him. On the day of the wedding, Xiao Yi abandoned Feng Ying in order to cure her of Mei poison. Song Wan was heartbroken and used the yin and yang poison he had obtained from the Miao witch in the early years. This poison resides in a woman's body and can transform into a male or female through intercourse. She endured the humiliation and worked hard to make Feng Ying become a man and a woman in public during the autumn hunting, and also destroyed Xiao Yi with the help of the eunuch Wang Gonggong. Xiao Yi was disgraced and expelled from the ancestral hall, and was eventually framed and killed by Song Wan, leaving no trace of his body. Feng Ying was sent to the military prostitute camp and died tragically on the battlefield. Song Wan became pregnant and became the real master of the General's Mansion.