The Cold King's Poisonous Concubine

She is Liu Yunxi, from the pleasure quarter in Jiangnan. She is Gu Xici of the Muchen Prince's residence. She has many connections to Jiang Qingwan, the eldest daughter of the Jiang clan, which was wiped out. And perhaps she is also... His frail, helpless concubine has so many identities he knows nothing about.