As a chef, Yiya has amazing taste. Mencius also spoke highly of the ability of elegance to reconcile tastes. Therefore, Yi Ya is indeed the most famous chef who is good at blending tastes. Qi Huangong once said that he had never eaten human flesh, so Yiya cooked her son for Qi Huangong, gained the trust of Qi Huangong, and wanted to appoint him to replace Guan Zhong, who was dying. However, Guan Zhong believes: "People's love must not love their own son, and the son's forbearance will make him love you!" So for him, Qi Huangong dismissed him and Wei Kaifang and Li Diao, and they were never allowed in again. In the end, Qi Huangong didn't listen to Guan Zhong's last words, but trusted Yi Ya and Vertical Carving. Qi Huangong was seriously ill, and Yi Ya made an insurrection with vertical Diao, filling the palace gate and building a high wall, which was blocked from inside and outside. Finally, Qi Huangong died of hunger.