The Prime Minister's Mansion is in danger.
In order to protect her family, her legitimate daughter Liu Yunqing refused to marry into Prince Jing's palace to serve the disabled prince who was rumored to be violent and bloodthirsty and with both legs missing.
This marriage fell on the concubine Liu Yunshu.
She has no choice.
On the eve of the substitute marriage, Yun Shu unexpectedly learned from a drunken boy that Prince Jing Xiao Xuanyi's legs might not be disabled at all.