In this life, the protagonist finds that he can no longer stop the personal expedition, because Wang Zhen, Xungui, border generals, and the civil service group have all been involved in the situation. So he went against the grain and decided to take advantage of the historical point of being "captured", pretending to be stupid, deliberately going deep into Oara, and becoming an emperor's spy hidden in the enemy camp.
His goal is not to simply escape back to the Ming Dynasty, but to use Oala's help to cleanse the corrupt forces in the court, reshape the military system, support Yu Qian to defend Beijing, and finally return to the capital, regain the imperial power, and start the Ming Dynasty's resurgence.