The prince was seriously ill, and Jiang Yeshen was invited to Hanzhong, a place in the ordinary world, but disappeared in Huafang Street. Xue Meng accepted the missing person commission and rushed to Hanzhong but met Jiang Xi's adopted son. After the two tested each other, Xue Meng discovered that the three of them seemed to have a secret that could not be discovered by the other party. On the day of the palace banquet, as expected, an accident occurred. An incident from the past revealed the cause and effect of the monster insect incident.
Concept: The question in this round is called symmetry