Zhang Xiucai, the richest man in Qinghe County, was suddenly framed and imprisoned by Wan Guifei's brother. His family property was confiscated. His daughter Zhang Minzhi disguised herself and went to Yuelu Academy to study, just to meet the emperor after the national competition and clear the grievances of the family. After entering the academy, she solved various strange cases and got acquainted with the prince Zhu Youtang who was studying incognito in the academy. The two joined forces and developed a relationship. They uncovered the conspiracy of Concubine Wan Guifei and helped Zhu Youtang ascend to the throne.
