It is based on the novel The Concubine of Tang: Legend of Pearl (大唐后妃传之珍珠传奇) by Cang Mingshui; and tells the fictional love story of Emperor Daizong and Consort Shen, aided by the grandiose historical background of the An Shi Rebellion (755-763).

Kind-hearted and noble, she stayed behind during the An Lushan Rebellion in order to show solidarity with the Tang citizens.

Although she was captured by the opposing forces, she never gave up protecting her people, and remained loyal to her husband despite the pursuit of Moyan Chou, a Uyghur general, and An Qingxu, the son of An Lushan.

After peace was restored, Li Chu was determined to relocate her and bring her back to the palace, ignoring the advice of his fellow officials.

However, Zhenzhu refused to return to the palace with him, as she knew her time as a hostage would jeopardize his chances of succeeding the throne.