Shen Bichun and Shen Mingzhu, two sisters, married into the royal mansion and became pregnant at the same time. Shen Bichun swapped the children, but Shen Mingzhu switched them back. However, Shen Bichun was unaware of this. She mistreated her biological son, Rong Changhua, and showed favoritism to Rong Changlin. Later, when the crown prince was choosing companions for study, Rong Changhua was disfigured by Shen Bichun. Despite this, he was selected for his talent but was framed again. Eventually, Rong Changlin was chosen. Shen Bichun tried in vain to claim Rong Changhua as her son. After coming to her senses, she committed suicide. Finally, Shen Mingzhu learned the truth about the child - swapping. She accused Rong Yiren. Rong Changhua foiled Rong Yiren's plot of treason. Rong Yiren was imprisoned, and the family was finally reunited.
