In order to save my eldest sister, I was forced to marry the rumored bloodthirsty and crazy Crown Prince Zhenbei. On the wedding night, before the red candle was extinguished, he handcuffed the black iron shackles behind his back and dragged her into a secret room that was hidden from the light of day. With water and food cut off, and cold arrows from secret agencies, murderous intent is approaching the throat at every step. In a desperate situation, the ancestral jade pendant in my palm suddenly became warm, and it could actually deduce the death in the secret room and the childhood nightmare buried deep in the prince's body. I took the opportunity to fight fire with fire, setting up traps step by step, and pry open his paranoid defenses. But when a secret letter slipped quietly, I was shocked to realize that behind the substitute marriage was a shocking chess game that subverted the imperial power... That night, he pushed her against the wall with red eyes: "If you dare to lie to me, I will have no one in this world." What happened next?