Adapted from the novel The Concubine's Daughter is Poisonous by Qin Jian, it's a fictionalized account of Emperor Wencheng of Northern Wei's reign and Empress Dowager Feng's regency.
It was praised for its fast storyline that showcased the growth of a strong and independent female lead, as well as for fleshing out the background stories of various supporting characters.
She thus takes it upon herself to fight against the Chiyun clan and becomes entangled with Northern Wei's prince, Tuoba Jun (Luo Jin).
She also attracts the eye of Tuoba Yu (Vanness Wu) who sees her as a chess piece to be used toward his ultimate goal of becoming emperor.
An alliance formed by 12 writers, including famed wuxia novelist Woon Swee Oan, joined to sue Qin Jian.