The doctor tells Cai that Cai is fine and that he has a wound that needs to be treated. Cai tells the doctor to take care of Su li and not to do anything that would make him regret later. He says that whoever kills him will get his hands dirty. Cai says that if Su li dies, he will wish that he were dead. He then tells Cai to swallow poison so that he will not know what is wrong with Su li