During the Cold Food Festival, a fire burned down the century-old Xie family's ancestral hall. Xie Yun deciphered the Morse code from the armband gold given by Concubine Cui, and discovered the truth that his father was framed as a collaborator. In order to avenge her entry into the palace, she designed the Ninth Prince to drink "Fu Sheng Druid" by mistake and sneak into the Chongwen Hall in place of his deceased attendant. While repairing the fragments of "Hetu Luoshu", he had his first confrontation with Xiao Jingheng, who was disguised as a painter. The two fell into the secret passage of the imperial mausoleum due to the competition for Zhuge Liannu's design...
Purpose: Xuanji cannot reveal it