C140 Round table on the killing of demons

Regarding Xue Qingying's question, Ling Tianfeng could not directly answer it, furthermore, he promised Su Lianying that he would not reveal her identity, but since she suddenly appeared, he had to give her an explanation. No matter what was said, he had to go and finish the calculation.

Ling Tianfeng muttered: "Uhh … I don't know who she is, but he must be a mysterious expert