The bronze lamps in Zhangtai Palace were lit, and the incense burner exuded a cold breath. Meng Yi was ordered to carry out the task of killing Fusu. Fusu, as the eldest son of Yingzheng, was imprisoned for opposing the book-burning policy. Yingzheng believed that Fusu intended to split the regime and challenge the imperial power with Confucianism, so he ordered his execution. Zhao Gao secretly planned to support Hu Hai's succession through Fu Su's death, thereby taking control of the government. Although Yingzheng was angry, he still decided to go to Tianlao in person to confirm whether Fusu had repented.