The reason for the cruelty was twofold. Zhou Ruyan harbored deep resentment, and he had a fervent, distorted devotion and respect for the Empress.
Burdened by an infamous reputation he could never wash off and by the injustice of a wrongful death.
He was finally vindicated.
This made him even more eager to be reincarnated as a human than he had been as the exiled female cultivator. He longed to be among the people of Inner City, serving under the temples of the Immortals.
Thus, he resorted to using Evil Techniques on living souls for Soul Nourishment and Body Refinement, foolishly fantasizing about the dead being reborn.
After listening to Lan Youdie's words,
Baili An seemed thoughtful and said, "If the Empress could retrieve Zhou Ruyan's eyes, why didn't she fully convert him, instead of causing so many innocent people in the border city to die in vain?"