Three years ago, Xiao Che, the powerful Commander of the Imperial Brocade Guard, was framed for colluding with the enemy and betraying his country. His entire family was sentenced to execution. Xiao Che faked his death and escaped, living in seclusion for three years under the name Su Chen. Now the new emperor is still a child, while the imperial relatives and eunuchs monopolize power and the court is in turmoil. Returning to the capital as an ordinary scholar and adviser, Xiao Che secretly sets his plans in motion, gradually exposing the truth behind the events of that year and restoring order to the imperial court. He is the avenging dragon who has returned, and the master strategist hidden in the dust.