사마사
Cao Fang was angry with Sima Shi about the deaths of Li Feng and Zhang Ji. Later in 254, his supporters proposed a plan for him to seize power from Sima Shi: when Sima Shi's brother Sima Zhao arrived at the palace for an official visit before heading to Chang'an, Cao Fang would kill Sima Zhao and take control of his troops, and use those troops to attack Sima Shi. Cao Fang was apprehensive and hesitated in implementing the plan. Sima Shi heard about the plot and removed Cao Fang from the throne. Cao's life was spared and he was demoted to his previous title of Prince of Qi.