Sparrow in a Cage

The young Son of Heaven is chained to the dragon bed by the Regent. The Emperor endures while plotting his escape. When the rebel army bathes the palace in blood, he discovers: every chain was the Regent shielding him. The court wants him dead. He hates him, yet he is the only one left to rely on. "If you're going to be my dog, then bite down hard on your bone." This is the mutual imprisonment of a mad dog and an emperor.